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        <OtherCompensation>0</OtherCompensation>
      </Form990PartVIISectionA>
      <Form990PartVIISectionA>
        <NamePerson>Helen Greiner</NamePerson>
        <Title>Trustee</Title>
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        <IndividualTrusteeOrDirector>X</IndividualTrusteeOrDirector>
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      </Form990PartVIISectionA>
      <Form990PartVIISectionA>
        <NamePerson>Henri A Termeer</NamePerson>
        <Title>Trustee</Title>
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        <AverageHoursPerWeekRelated>0</AverageHoursPerWeekRelated>
        <IndividualTrusteeOrDirector>X</IndividualTrusteeOrDirector>
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      </Form990PartVIISectionA>
      <Form990PartVIISectionA>
        <NamePerson>Howard H Stevenson</NamePerson>
        <Title>Trustee</Title>
        <AverageHoursPerWeek>1</AverageHoursPerWeek>
        <AverageHoursPerWeekRelated>0</AverageHoursPerWeekRelated>
        <IndividualTrusteeOrDirector>X</IndividualTrusteeOrDirector>
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        <OtherCompensation>0</OtherCompensation>
      </Form990PartVIISectionA>
      <Form990PartVIISectionA>
        <NamePerson>Ira Stepanian</NamePerson>
        <Title>Trustee</Title>
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        <IndividualTrusteeOrDirector>X</IndividualTrusteeOrDirector>
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        <OtherCompensation>0</OtherCompensation>
      </Form990PartVIISectionA>
      <Form990PartVIISectionA>
        <NamePerson>Jaishree Deshpande</NamePerson>
        <Title>Trustee</Title>
        <AverageHoursPerWeek>1</AverageHoursPerWeek>
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        <IndividualTrusteeOrDirector>X</IndividualTrusteeOrDirector>
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        <OtherCompensation>0</OtherCompensation>
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      <Form990PartVIISectionA>
        <NamePerson>Jane Hirsh</NamePerson>
        <Title>Trustee</Title>
        <AverageHoursPerWeek>1</AverageHoursPerWeek>
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        <IndividualTrusteeOrDirector>X</IndividualTrusteeOrDirector>
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      <Form990PartVIISectionA>
        <NamePerson>Jane Pappalardo</NamePerson>
        <Title>Trustee</Title>
        <AverageHoursPerWeek>1</AverageHoursPerWeek>
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        <IndividualTrusteeOrDirector>X</IndividualTrusteeOrDirector>
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      </Form990PartVIISectionA>
      <Form990PartVIISectionA>
        <NamePerson>Jeffrey R Beir</NamePerson>
        <Title>Trustee</Title>
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      <Form990PartVIISectionA>
        <NamePerson>Jonathan J Fleming</NamePerson>
        <Title>Trustee</Title>
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        <NamePerson>Kenneth D Legg</NamePerson>
        <Title>Trustee</Title>
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      </Form990PartVIISectionA>
      <Form990PartVIISectionA>
        <NamePerson>Kurt Melden</NamePerson>
        <Title>Trustee</Title>
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        <NamePerson>Laura Barker Morse</NamePerson>
        <Title>Trustee</Title>
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      <Form990PartVIISectionA>
        <NamePerson>Lawrence A Siff</NamePerson>
        <Title>Trustee</Title>
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      </Form990PartVIISectionA>
      <Form990PartVIISectionA>
        <NamePerson>Leo X Liu</NamePerson>
        <Title>Trustee</Title>
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      </Form990PartVIISectionA>
      <Form990PartVIISectionA>
        <NamePerson>Leslie E Greis</NamePerson>
        <Title>Trustee</Title>
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      </Form990PartVIISectionA>
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        <NamePerson>Malcolm L Sherman</NamePerson>
        <Title>Trustee</Title>
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      <Form990PartVIISectionA>
        <NamePerson>Matthew D Shedd</NamePerson>
        <Title>Trustee</Title>
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      </Form990PartVIISectionA>
      <Form990PartVIISectionA>
        <NamePerson>Michael A Champa</NamePerson>
        <Title>Trustee</Title>
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      </Form990PartVIISectionA>
      <Form990PartVIISectionA>
        <NamePerson>Nancy E Dempze</NamePerson>
        <Title>Trustee</Title>
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      <Form990PartVIISectionA>
        <NamePerson>Ranch C Kimball</NamePerson>
        <Title>Trustee</Title>
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      <Form990PartVIISectionA>
        <NamePerson>Richard A Carpenter</NamePerson>
        <Title>Trustee</Title>
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      <Form990PartVIISectionA>
        <NamePerson>Richard A DiPerna</NamePerson>
        <Title>Trustee</Title>
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        <NamePerson>Richard M Burnes Jr</NamePerson>
        <Title>Trustee</Title>
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      </Form990PartVIISectionA>
      <Form990PartVIISectionA>
        <NamePerson>Stephen E Coit</NamePerson>
        <Title>Trustee</Title>
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        <NamePerson>Steven Haley</NamePerson>
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        <NamePerson>Thomas J Pincince</NamePerson>
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      <Form990PartVIISectionA>
        <NamePerson>Wendy W Kistler</NamePerson>
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        <NamePerson>William H Swanson</NamePerson>
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      <Form990PartVIISectionA>
        <NamePerson>Yet-Ming Chiang</NamePerson>
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      <Form990PartVIISectionA>
        <NamePerson>John F Reno</NamePerson>
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      <Form990PartVIISectionA>
        <NamePerson>Richard I Anders</NamePerson>
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        <NamePerson>Sandra O Moose</NamePerson>
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        <NamePerson>Tom Leighton</NamePerson>
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        <NamePerson>Vanu G Bose</NamePerson>
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        <NamePerson>Ioannis N Miaoulis</NamePerson>
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        <NamePerson>Wayne Bouchard</NamePerson>
        <Title>COO/Asst. Sec'y</Title>
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        <NamePerson>John T Slakey</NamePerson>
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        <NamePerson>Joan Hadly</NamePerson>
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        <NamePerson>Lawrence Bell</NamePerson>
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        <NamePerson>Jonathan R Burke</NamePerson>
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        <NamePerson>Paul M Fontaine</NamePerson>
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        <NamePerson>Christine Cunningham</NamePerson>
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        <NamePerson>Cynthia G Mackey</NamePerson>
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        <NamePerson>E James Kraus</NamePerson>
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        <NamePerson>Marc Check</NamePerson>
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        <NamePerson>Yvonne Spicer</NamePerson>
        <Title>VP Advocacy/Ed Partnrshps</Title>
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          <NameBusiness>
            <BusinessNameLine1>Richard White Sons Inc</BusinessNameLine1>
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        </NameOfContractor>
        <AddressOfContractor>
          <AddressUS>
            <AddressLine1>70 Rowe Street</AddressLine1>
            <City>Auburndale</City>
            <State>MA</State>
            <ZIPCode>024661596</ZIPCode>
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        </AddressOfContractor>
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          <NameBusiness>
            <BusinessNameLine1>UGL Services Unicco</BusinessNameLine1>
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        </NameOfContractor>
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            <AddressLine1>4002 Solutions Center</AddressLine1>
            <City>Chicago</City>
            <State>IL</State>
            <ZIPCode>606774000</ZIPCode>
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          <NameBusiness>
            <BusinessNameLine1>Cambridge Seven Associates Inc</BusinessNameLine1>
          </NameBusiness>
        </NameOfContractor>
        <AddressOfContractor>
          <AddressUS>
            <AddressLine1>1050 Mass Ave</AddressLine1>
            <City>Cambridge</City>
            <State>MA</State>
            <ZIPCode>02139</ZIPCode>
          </AddressUS>
        </AddressOfContractor>
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        <Compensation>567545</Compensation>
      </ContractorCompensation>
      <ContractorCompensation>
        <NameOfContractor>
          <NameBusiness>
            <BusinessNameLine1>Aldon Electric</BusinessNameLine1>
          </NameBusiness>
        </NameOfContractor>
        <AddressOfContractor>
          <AddressUS>
            <AddressLine1>38 Greenwood Avenue</AddressLine1>
            <City>Weymouth</City>
            <State>MA</State>
            <ZIPCode>02189</ZIPCode>
          </AddressUS>
        </AddressOfContractor>
        <DescriptionOfServices>Construction</DescriptionOfServices>
        <Compensation>551294</Compensation>
      </ContractorCompensation>
      <ContractorCompensation>
        <NameOfContractor>
          <NameBusiness>
            <BusinessNameLine1>Taylor Group</BusinessNameLine1>
          </NameBusiness>
        </NameOfContractor>
        <AddressOfContractor>
          <AddressForeign>
            <AddressLine1>255 Biscayne Crescent</AddressLine1>
            <City>Brampton</City>
            <ProvinceOrState>Ontario</ProvinceOrState>
            <Country>CA</Country>
            <PostalCode>L6W 4R2</PostalCode>
          </AddressForeign>
        </AddressOfContractor>
        <DescriptionOfServices>Exhibit fabrication</DescriptionOfServices>
        <Compensation>335000</Compensation>
      </ContractorCompensation>
      <NumberOfContractorsGT100K>14</NumberOfContractorsGT100K>
      <FederatedCampaigns>0</FederatedCampaigns>
      <MembershipDues>2528365</MembershipDues>
      <FundraisingEvents>636211</FundraisingEvents>
      <RelatedOrganizations>0</RelatedOrganizations>
      <GovernmentGrants>11570942</GovernmentGrants>
      <AllOtherContributions>22059779</AllOtherContributions>
      <NoncashContributions>1663981</NoncashContributions>
      <TotalContributions>36795297</TotalContributions>
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        <Description>Admissions</Description>
        <BusinessCode>712110</BusinessCode>
        <TotalRevenueColumn>10599426</TotalRevenueColumn>
        <RelatedOrExemptFunctionIncome>10599426</RelatedOrExemptFunctionIncome>
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      </ProgramServiceRevenue>
      <ProgramServiceRevenue>
        <Description>Membership benefits</Description>
        <BusinessCode>712110</BusinessCode>
        <TotalRevenueColumn>4503360</TotalRevenueColumn>
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      <ProgramServiceRevenue>
        <Description>Parking</Description>
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      <ProgramServiceRevenue>
        <Description>Educational program income</Description>
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      <ProgramServiceRevenue>
        <Description>Exhibit rental fees</Description>
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        <RelatedOrExemptFunctionIncome>47057</RelatedOrExemptFunctionIncome>
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      <GrossRents>
        <Real>1560792</Real>
        <Personal>0</Personal>
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        <Real>0</Real>
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      <RentalIncomeOrLoss>
        <Real>1560792</Real>
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      <NetRentalIncomeOrLoss>
        <TotalRevenueColumn>1560792</TotalRevenueColumn>
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        <Securities>27993785</Securities>
        <Other>0</Other>
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      <LessCostOthBasisSalesExpenses>
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      <NetGainOrLossInvestments>
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      <GrossIncomeFundraisingEvents>77209</GrossIncomeFundraisingEvents>
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      <NetIncomeFromFundraisingEvents>
        <TotalRevenueColumn>-172542</TotalRevenueColumn>
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      <GamingDirectExpenses>0</GamingDirectExpenses>
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        <TotalRevenueColumn>0</TotalRevenueColumn>
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        <TotalRevenueColumn>1978495</TotalRevenueColumn>
        <RelatedOrExemptFunctionIncome>1978495</RelatedOrExemptFunctionIncome>
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        <Description>Ancillary services</Description>
        <BusinessCode>531120</BusinessCode>
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        <UnrelatedBusinessRevenue>470273</UnrelatedBusinessRevenue>
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      <MiscellaneousRevenue>
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      <TotalRevenue>
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      <GrantsToDomesticOrgs>
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        <ProgramServices>4126153</ProgramServices>
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      <GrantsToDomesticIndividuals>
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        <ProgramServices>329739</ProgramServices>
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      <ForeignGrants>
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        <ProgramServices>76500</ProgramServices>
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        <ProgramServices>0</ProgramServices>
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      <CompCurrentOfficersDirectors>
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        <ProgramServices>818736</ProgramServices>
        <ManagementAndGeneral>679016</ManagementAndGeneral>
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      <CompDisqualPersons>
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        <ProgramServices>0</ProgramServices>
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      <OtherSalariesAndWages>
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        <ProgramServices>15759113</ProgramServices>
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      <PensionPlanContributions>
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        <ProgramServices>748806</ProgramServices>
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        <ProgramServices>1744625</ProgramServices>
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        <ProgramServices>1259349</ProgramServices>
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      <FeesForServicesLegal>
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        <ProgramServices>0</ProgramServices>
        <ManagementAndGeneral>41288</ManagementAndGeneral>
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      </FeesForServicesLegal>
      <FeesForServicesAccounting>
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        <ManagementAndGeneral>140870</ManagementAndGeneral>
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      <FeesForServicesLobbying>
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        <ProgramServices>100445</ProgramServices>
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        <Fundraising>99890</Fundraising>
      </FeesForServicesProfFundraising>
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        <ProgramServices>0</ProgramServices>
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        <ProgramServices>3359082</ProgramServices>
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        <Fundraising>20426</Fundraising>
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        <ProgramServices>2081555</ProgramServices>
        <ManagementAndGeneral>216532</ManagementAndGeneral>
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        <ProgramServices>378552</ProgramServices>
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        <ManagementAndGeneral>304296</ManagementAndGeneral>
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      <TravelEntrtnmntPublicOfficials>
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        <ManagementAndGeneral>8646</ManagementAndGeneral>
        <Fundraising>7876</Fundraising>
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        <ManagementAndGeneral>142174</ManagementAndGeneral>
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        <ProgramServices>20615</ProgramServices>
        <ManagementAndGeneral>387505</ManagementAndGeneral>
        <Fundraising>0</Fundraising>
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        <Description>Film amd exhibit rental</Description>
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        <ProgramServices>1272750</ProgramServices>
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      <OtherExpenses>
        <Description>Catering</Description>
        <Total>802448</Total>
        <ProgramServices>524803</ProgramServices>
        <ManagementAndGeneral>54798</ManagementAndGeneral>
        <Fundraising>222847</Fundraising>
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      <OtherExpenses>
        <Description>Credit card handling fees</Description>
        <Total>496080</Total>
        <ProgramServices>484281</ProgramServices>
        <ManagementAndGeneral>0</ManagementAndGeneral>
        <Fundraising>11799</Fundraising>
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      <OtherExpenses>
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        <Total>246874</Total>
        <ProgramServices>224010</ProgramServices>
        <ManagementAndGeneral>22864</ManagementAndGeneral>
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      <AllOtherExpenses>
        <Total>165636</Total>
        <ProgramServices>-6215</ProgramServices>
        <ManagementAndGeneral>333288</ManagementAndGeneral>
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      <TotalFunctionalExpenses>
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        <ProgramServices>45111339</ProgramServices>
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        <EOY>18613</EOY>
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        <EOY>0</EOY>
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        <EOY>0</EOY>
      </OtherNotesLoansReceivableNet>
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        <EOY>0</EOY>
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        <EOY>94240867</EOY>
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      <IntangibleAssets>
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      <TotalAssets>
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        <EOY>221640179</EOY>
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        <CurrentTaxYearMinus3Years>22897546</CurrentTaxYearMinus3Years>
        <CurrentTaxYearMinus2Years>25171983</CurrentTaxYearMinus2Years>
        <CurrentTaxYearMinus1Year>25102854</CurrentTaxYearMinus1Year>
        <CurrentTaxYear>36795297</CurrentTaxYear>
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        <CurrentTaxYearMinus2Years>0</CurrentTaxYearMinus2Years>
        <CurrentTaxYearMinus1Year>0</CurrentTaxYearMinus1Year>
        <CurrentTaxYear>0</CurrentTaxYear>
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        <CurrentTaxYearMinus2Years>0</CurrentTaxYearMinus2Years>
        <CurrentTaxYearMinus1Year>0</CurrentTaxYearMinus1Year>
        <CurrentTaxYear>0</CurrentTaxYear>
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        <CurrentTaxYearMinus3Years>22897546</CurrentTaxYearMinus3Years>
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      <OtherLiabilities>
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      <OtherLiabilities>
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        <Identifier>SchD_P03_S00_L01</Identifier>
        <ReturnReference>Schedule D, Part III, Line 1</ReturnReference>
        <Explanation>Collections footnote: The Museum's collections consist of approximately 30,000 artifacts used primarily for educational activities, encompassing interpretations, discovery spaces, exhibits, lectures, classes, demonstrations, reference services, or other programs. The Museum also has a historical and archival collection that documents the history of the institution. The composition of the Museum's collections by artifact type is as follows: Natural Sciences 20,000 items, Cultural/Physical Science 5,000 items, Artwork 2,000 items,Institutional History 3,000 items, Archives 300 linear feet. The Museum's Collections Management Policy stipulates that the Museum will only acquire objects useful in fulfilling the educational purpose stated in its mission. The Museum accepts only those objects that can be immediately put on display in an exhibit, used in educational programs, or in future programming. Items may be de-accessioned from the collections if they are determined to be no longer useful or relevant in assisting the Museum in fulfilling its mission. Consistent with the American Association of Museums' Code of Ethics, Museum policy specifies that proceeds from the de accessioning of an item may only be used for the conservation or acquisition of other collections items. In accordance with current practice generally followed by museums, collections are not recorded as assets in the accompanying financial statements. Purchased additions to the collections are recorded as expenses at the time acquired. Although artifacts from the collections may from time to time be incorporated into exhibits, the Museum's exhibits themselves are not considered part of its collections and may be capitalized under the Museum's property, plant, and equipment policies.</Explanation>
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      <Form990ScheduleDPartXIII>
        <Identifier>SchD_P03_S00_L04</Identifier>
        <ReturnReference>Schedule D, Part III, Line 4</ReturnReference>
        <Explanation>The Museum's collections are used primarily for educational activities, encompassing interpretations, discovery spaces, exhibits, lectures, classes, demonstrations, reference service, or other programs. The Museum also has a historical and archival collection that documents the important and rich history of the institution. The Collections Department provides professional stewardship for artifacts that are temporarily in the custody of the Museum through loans and/or temporary exhibitions. Collections consist of: Natural Sciences - 20,000 items; Cultural/Physical Science - 5,000 items; Artwork - 2,000 items; Institutional History - 3,000 items; Archives - 300 linear feet. Live animals include: Butterfly Garden - approximately 300 butterflies representing 50 species, Other spaces - 120 either individual animals or colonies of live animals throughout the Museum presenting 50 species. Fifty of these are on exhibit and the rest live in the Live Animal Care Center.</Explanation>
      </Form990ScheduleDPartXIII>
      <Form990ScheduleDPartXIII>
        <Identifier>SchD_P05_S00_L04</Identifier>
        <ReturnReference>Schedule D, Part V, Line 4</ReturnReference>
        <Explanation>The Museum's endowment includes both donor-restricted endowment funds and funds designated by the Board of Trustees to function as endowments ("quasi-endowments"). The endowment consists of 111 individual donor restricted endowment funds and 27 quasi-endowment funds used for a variety of purposes. The relative uses of the endowment (as measured by fair value) include: Unrestricted/general operations - 28%, Exhibit construction and maintenance - 31%, Program support - 15%, Mixed use (primarily exhibits and programs jointly) - 16%, Other (including Library, Access, and Internships) - 10%</Explanation>
      </Form990ScheduleDPartXIII>
      <Form990ScheduleDPartXIII>
        <Identifier>SchD_P10_S00_L02</Identifier>
        <ReturnReference>Schedule D, Part X, Line 2</ReturnReference>
        <Explanation>The Museum's footnote disclosure with respect to FIN 48 is as follows: The Museum is exempt from income taxation on activities related to its charitable purposes under the provisions of Section 501(c)(3) of the Internal Revenue Code and is qualified to receive tax-deductible gifts and bequests under the U.S. tax code. The Museum is subject to tax on income from any business it conducts which is unrelated to its charitable purposes. The Museum's unrelated business income tax is limited and no tax provision has been made in the accompanying financial statements. The Museum accounts for the effect of any uncertain tax positions based on a "more-likely-than-not" threshold applied to the likelihood of positions taken or expected to be taken in a tax return being sustained upon examination by the relevant taxing authority. If a tax position or positions are deemed to result in uncertainties of those positions, the unrecognized tax benefit is estimated based on a "cumulative probability assessment" that aggregates the estimated tax liability for all uncertain tax positions. The Museum has identified its status as a tax-exempt entity and the determination of income as related or unrelated to its exempt purpose to be its only significant tax positions and has determined that such tax positions do not result in an uncertainty requiring recognition. The Museum is not currently under examination by any taxing jurisdiction. The Museum's Federal and state tax returns are generally open for examination for three years following the date filed.</Explanation>
      </Form990ScheduleDPartXIII>
      <Form990ScheduleDPartXIII>
        <Identifier>SchD_P11_S00_L02d</Identifier>
        <ReturnReference>Schedule D, Part XI, Line 2d</ReturnReference>
        <Explanation>Amortization of liability $205,140; rounding variances -$1.</Explanation>
      </Form990ScheduleDPartXIII>
      <Form990ScheduleDPartXIII>
        <Identifier>SchD_P11_S00_L04b</Identifier>
        <ReturnReference>Schedule D, Part XI, Line 4b</ReturnReference>
        <Explanation>Cost of goods sold on Line 10b -$2,090,122; fundraising expenses on Line 8b -$249,751; loss on disposal of capital assets -$245,825.</Explanation>
      </Form990ScheduleDPartXIII>
      <Form990ScheduleDPartXIII>
        <Identifier>SchD_P12_S00_L02d</Identifier>
        <ReturnReference>Schedule D, Part XII, Line 2d</ReturnReference>
        <Explanation>Cost of goods sold reported in Part VIII $2,090,122; Fundraising expenses reported in Part VIII $249,751; Loss on disposal of capital assets $245,825; Capitalized bond fees $2,417; Rounding variances $1.</Explanation>
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      <AcctsActvsOutUSTable>
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        <NumberOfOffices>0</NumberOfOffices>
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      <TotalNumberOfOffices>0</TotalNumberOfOffices>
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      <GrantsToOrgsOutsideUS>
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        <Region>Central America and the Caribbean</Region>
        <PurposeOfGrant>Scholarships</PurposeOfGrant>
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        <Region>Middle East and North Africa</Region>
        <PurposeOfGrant>Scholarships</PurposeOfGrant>
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        <MannerOfCashDisbursement>Wire transfer</MannerOfCashDisbursement>
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        <Region>East Asia and the Pacific</Region>
        <PurposeOfGrant>Scholarships</PurposeOfGrant>
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        <Identifier>SchF_P01_S00_L02</Identifier>
        <ReturnReference>Schedule F, Part I, Line 2</ReturnReference>
        <Explanation>The Museum of Science is the flagship site for the Intel Computer Clubhouse Network, which includes sites both within and outside the US. The Museum's primary role is to advise and to coordinate communication and cooperation between sites, but each site is an independent entity. The Museum will occasionally provide pass-through funding from Intel to help in establishment and upgrade Clubhouse sites, and also provides travel support for representatives from sites to attend the network Annual Meeting and the biennial Teen Summit, an event that includes opportunities for Clubhouse youth to express themselves using graphic design, video animation, digital art, music, radio, documentary film-making, and 3-D modeling. The Museum's other major grant-making role in the Network is to pass through Intel funding for Clubhouse to College scholarships. Scholarships are awarded through an application process which includes review by staff of the Clubhouse Network, a representative from MIT, a representative from Intel, a Museum staff person not directly associated with the Clubhouse program and has also included mentors and staff from around the Network. Scholarships are paid to the Clubhouse site or to the school attended, not to the individual student. For all types of funding, recipient sites are required to provide narrative and financial reporting to the Museum to ensure proper use of funds. Sites that have demonstrated an inability to perform adequate administration of grant funds are not eligible for future funding, although they may continue to participate in the network in other ways. All sites are required to be legally recognized as charities in their home jurisdictions as a condition of network membership.</Explanation>
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        <Identifier>SchF_P01_S00_L03</Identifier>
        <ReturnReference>Schedule F, Part I, Line 3</ReturnReference>
        <Explanation>GRANT-MAKING: Grant-making expenditures outside the United States are directly accounted for on the Museum's financial statements as program expenditures not distinguished in any way from similar grants made to recipients within the United States. STAFF PROFESSIONAL DEVELOPMENT AND PROGRAM DISSEMINATION: As the Museum expands its programming internationally, staff are increasingly called upon to travel to meetings and conferences in other countries, and to visit peer institutions to review programs and exhibits which may potentially be added to the Museum's own offerings. Staff also introduce other institutions to programs and materials the Museum has developed. Costs associated with such travel are accounted for under the same accountable plan as the Museum's domestic travel.</Explanation>
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      <EmailSolicitations>X</EmailSolicitations>
      <PhoneSolicitations>X</PhoneSolicitations>
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      <SolicitationOfNonGovtGrants>X</SolicitationOfNonGovtGrants>
      <SolicitationOfGovtGrants>X</SolicitationOfGovtGrants>
      <SpecialFundraisingEvents>X</SpecialFundraisingEvents>
      <AgreementRefFundraising>1</AgreementRefFundraising>
      <FundraiserActivityInformation>
        <NameOfOrganization>
          <BusinessNameLine1>Comnet Marketing Group</BusinessNameLine1>
        </NameOfOrganization>
        <AddressUS>
          <AddressLine1>1214 Stowe Ave</AddressLine1>
          <City>Medford</City>
          <State>OR</State>
          <ZIPCode>97501</ZIPCode>
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        <Activity>Telemarketing</Activity>
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        <GrossReceipts>18650</GrossReceipts>
        <AmountRetainedByContractor>13516</AmountRetainedByContractor>
        <NetToOrganization>5134</NetToOrganization>
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          <City>Sudbury</City>
          <State>MA</State>
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        <Activity>Consulting / fundraising counsel</Activity>
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          <State>IN</State>
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          <City>Toronto</City>
          <ProvinceOrState>Ontario</ProvinceOrState>
          <Country>CA</Country>
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      <LicensedStates>MA</LicensedStates>
      <LicensedStates>NH</LicensedStates>
      <LicensedStates>NY</LicensedStates>
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        <Explanation>The Museum's use of external fundraisers may, in any given year, consist of a) general fundraising counsel, whose work is generally too integrated into the Museum's overall Advancement function to have "gross receipts" amounts specifically assigned; b) direct-mail companies, whose work ranges from simple large-scale mailing of materials developed and produced by the Museum itself to a more direct involvement in the design and creation of the solicitation materials; and c) telemarketers. In cases such as direct mail where costs other than the fundraising services are incurred (such as postage, printing, etc.), the company's invoicing is in sufficient detail to allow the Museum to track and code those expenses separately from the amounts reported as "professional fundraising fees" on From 990, Part IX, Line 11e. For the companies listed in Schedule G, those additional expenses totaled $13,135. All agreements with outside fundraisers provide for invoicing of the Museum based on solicitations made, rather than withholding of amounts from funds raised. No outside fundraiser has custody of any funds raised.</Explanation>
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        <DescriptionOfNonCashAssistance>n/a</DescriptionOfNonCashAssistance>
        <PurposeOfGrant>Fed'l subaward: Nanoscale Informal Science Education</PurposeOfGrant>
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          <BusinessNameLine1>Davis Square Research Associates</BusinessNameLine1>
        </RecipientNameBusiness>
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          <AddressLine1>119 College Ave 41</AddressLine1>
          <City>Somerville</City>
          <State>MA</State>
          <ZIPCode>02144</ZIPCode>
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        <PurposeOfGrant>Fed'l subaward: Bridging Eng., Sci., and Tech.</PurposeOfGrant>
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          <City>Sugar Grove</City>
          <State>IL</State>
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        <PurposeOfGrant>Fed'l subaward: Creating Communities of Learners</PurposeOfGrant>
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          <AddressLine1>3601 Lyon St</AddressLine1>
          <City>San Francisco</City>
          <State>CA</State>
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        <PurposeOfGrant>Fed'l subaward: Nanoscale Informal Science Education</PurposeOfGrant>
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          <BusinessNameLine1>Family Services Association</BusinessNameLine1>
        </RecipientNameBusiness>
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          <AddressLine1>3014 Rivas St</AddressLine1>
          <City>San Antonio</City>
          <State>TX</State>
          <ZIPCode>78228</ZIPCode>
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        <PurposeOfGrant>Private subaward: Best Buy Clubhouse Expansion</PurposeOfGrant>
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          <City>Philadelphia</City>
          <State>PA</State>
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          <State>MA</State>
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          <City>Chicago</City>
          <State>IL</State>
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          <City>Madison</City>
          <State>WI</State>
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          <City>Baltimore</City>
          <State>MD</State>
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        <PurposeOfGrant>Fed'l subaward: Creating Communities of Learners</PurposeOfGrant>
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          <AddressLine1>506 Keystone Dr</AddressLine1>
          <City>Warrendale</City>
          <State>PA</State>
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        <PurposeOfGrant>Fed'l subaward: Nanoscale Informal Science Education</PurposeOfGrant>
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          <BusinessNameLine1>Miami Science Museum</BusinessNameLine1>
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        <ReturnReference>Schedule J, Part I, Line 1a</ReturnReference>
        <Explanation>The Museum provides to its President and Director certain compensation not available to other employees, paying college tuition, room, and board for his children, and grossing up the payments to offset the related tax obligations. These payments are included in Part II Column (B)(iii) Other reportable compensation.</Explanation>
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        <Identifier>SchJ_P01_S00_L03</Identifier>
        <ReturnReference>Schedule J, Part I, Line 3</ReturnReference>
        <Explanation>The Compensation Committee of the Museum's Board meets twice yearly, once in spring and once in the late summer or early fall. The first meeting is focused on establishing a recommendation to the Finance Committee that budgets for the upcoming fiscal year's museum-wide merit increase pool. The second meeting is focused on the review of the performance of Key Employees and other senior leadership staff for the prior year and to approve the recommendations of the President/Director for any salary increases. In addition, the Committee reviews the performance and compensation of the President/Director and recommends any adjustment to compensation if warranted. In order to do this in a fully knowledgeable manner, the Committee annually reviews information obtained by the Vice President of Human Resources though a variety of resources. These resources include an outside survey group used to benchmark each of the senior management positions including the President and Director against local non-profit organizations that are of a similar size. In addition, the Museum uses public resources such as Guidestar to access salaries of key people in Museums located in metropolitan areas. Finally, the Museum participates in and receives information from local and regional salary surveys of other Museums in New England. This process gives a clear picture of local, regional and national salary levels for its senior management. The Compensation Committee reviews this information in addition to the history of compensation increases, overall performance of the individual and of the Museum prior to approving or making recommendations for compensation increases.</Explanation>
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            <BusinessNameLine1>Verizon</BusinessNameLine1>
          </NameBusiness>
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        <Relationship>Ttee Moose is a Dir. of Verizon</Relationship>
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        <DescriptionOfTransaction>Payment for phone service</DescriptionOfTransaction>
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        <Identifier>SchL_P04_S00_L00</Identifier>
        <ReturnReference>Schedule L, Part IV</ReturnReference>
        <Explanation>With respect to business relationships with companies associated with Trustees or Key Employees, it is the Museum's policy to subject such companies to the same procurement policies, procedures, and requirements as other, nonrelated, firms.</Explanation>
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        <NumberOfContributions>3</NumberOfContributions>
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        <NumberOfContributions>48</NumberOfContributions>
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        <MethodOfDeterminingRevenues>Market (hi/lo)</MethodOfDeterminingRevenues>
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        <NumberOfContributions>2</NumberOfContributions>
        <NoncashContribsRptdF990>0</NoncashContribsRptdF990>
        <MethodOfDeterminingRevenues>n/a</MethodOfDeterminingRevenues>
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        <NonCashCheckbox>X</NonCashCheckbox>
        <Description>Software</Description>
        <NumberOfContributions>1</NumberOfContributions>
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        <MethodOfDeterminingRevenues>List price</MethodOfDeterminingRevenues>
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        <NonCashCheckbox>X</NonCashCheckbox>
        <Description>Educational mat'ls</Description>
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        <NoncashContribsRptdF990>2512</NoncashContribsRptdF990>
        <MethodOfDeterminingRevenues>List price</MethodOfDeterminingRevenues>
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        <Description>Misc. equipment</Description>
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        <Explanation>In all instances in this Schedule, figures in Column (b) represent number of contributions, even where a contribution may include multiple items.</Explanation>
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        <ReturnReference>Schedule M, Part I, Line 33</ReturnReference>
        <Explanation>Lines for which Column (a) is checked but (c) is zero represent donations to the Museum's Collections of items of nominal value.</Explanation>
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      <GeneralExplanation>
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        <ReturnReference>Form 990, Part VI, Section B, Line 11b</ReturnReference>
        <Explanation>The Museum's Form 990 is prepared by the staff of the Accounting Department. It is then reviewed by the CFO and presented to the Audit Committee of the Museum's Board for further review. After the Audit Committee review, the final version of Form 990 is provided to all members of the Museum's Board before the form is filed. Form 990 is also reviewed by the Museum's auditor.</Explanation>
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      <GeneralExplanation>
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        <ReturnReference>Form 990, Part VI, Section B, Line 12c</ReturnReference>
        <Explanation>Upon election/hiring, and annually thereafter, all Museum Trustees, Overseers (an advisory, but non-governing body), and Key Employees are required to fill out a detailed Conflict of Interest form which solicits detailed information about associations with companies, organizations, and each other which may represent a conflict of interest with respect to the Museum. The forms are reviewed at least annually by both the CFO and staff of the Museum's Accounting department to identify any reported conflicts which may require disclosure and/or further follow-up. With respect to business relationships with companies associated with Trustees or Key Employees, it is the Museum's policy to subject such companies to the same procurement policies, procedures, and requirements as other, nonrelated, firms.</Explanation>
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      <GeneralExplanation>
        <Identifier>F990_P06_S0B_L15</Identifier>
        <ReturnReference>Form 990, Part VI, Section B, Line 15</ReturnReference>
        <Explanation>The Compensation Committee of the Museum's Board meets twice yearly, once in spring and once in the late summer or early fall. The first meeting is focused on establishing a recommendation to the Finance Committee that budgets for the upcoming fiscal year's museum-wide merit increase pool. The second meeting is focused on the review of the performance of Key Employees and other senior leadership staff for the prior year and to approve the recommendations of the President/Director for any salary increases. In addition, the Committee reviews the performance and compensation of the President/Director and recommends any adjustment to compensation if warranted. In order to do this in a fully knowledgeable manner, the Committee annually reviews information obtained by the Vice President of Human Resources though a variety of resources. These resources include an outside survey group used to benchmark each of the senior management positions including the President and Director against local non-profit organizations that are of a similar size. In addition, the Museum uses public resources such as Guidestar to access salaries of key people in Museums located in metropolitan areas. Finally, the Museum participates in and receives information from local and regional salary surveys of other Museums in New England. This process gives a clear picture of local, regional and national salary levels for its senior management. The Compensation Committee reviews this information in addition to the history of compensation increases, overall performance of the individual and of the Museum prior to approving or making recommendations for compensation increases.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <Identifier>F990_P06_S0C_L19</Identifier>
        <ReturnReference>Form 990, Part VI, Section C, Line 19</ReturnReference>
        <Explanation>The Museum's financial statements, Form 990, and other key documents are available in either hard copy or electronically upon request. Form 990 is also available through publicly accessible websites such as Guidestar.org. The audited financial statements are available on the Museum's website at http://www.mos.org/annual-reports.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <Identifier>F990_P11_S00_L09</Identifier>
        <ReturnReference>Form 990, Part XI, Line 9</ReturnReference>
        <Explanation>Change in value of split interest agreements $3,916,148; amortization of liability $205,140; capitalized bond fees -$2,417; rounding variances -$1.</Explanation>
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          <City>Boston</City>
          <State>MA</State>
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        <PrimaryActivities>Supporting organization</PrimaryActivities>
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          <City>Boston</City>
          <State>MA</State>
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