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      <MissionDescription>The Pacific Science Center is an independent, not-for-profit education foundation dedicated to: 1) Inspiring a lifelong interest in science, math and technology by engaging diverse communities through interactive and innovative exhibits and programs as well as state-of-the-art technology offered in large-screen-format film. 2) Leading the effort to improve science education region-wide. 3) Developing interactive and educational science exhibits for use by Pacific Science Center and other science centers worldwide. 4) Continuing to Champion science literacy. From its origins as the US Science Pavilion at the 1962 Seattle World's Fair, Pacific Science Center has expanded and diversified its programs while remaining true to the original vision of our founding scientists and civic leaders to be a resource of scientific information for the general public. Each year, Pacific Science Center's on-site and outreach programs serve approximately one million people.</MissionDescription>
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      <Description>Visitor Experiences: From robotic dinosaurs to the Tropical Butterfly House, Pacific Science Center houses a number of regionally iconic exhibits. Visitors to PSC, who average close to a million each year, engage with a wide range of hands-on exhibits and educational programs that inspire them to ask questions and seek answers. Additional exhibits include the Puget Sound Tidepool model, Body Works, the Insect Village, Naked Mole Rats, Genetics and many others. Our institution also hosts a wide variety of travelling exhibits throughout the year; our reputation has continued to grow throughout the decade as a result of hosting and helping create several landmark exhibits including Discovering the Dead Sea Scrolls in 2007 and Lucy's Legacy: the Hidden Treasures of Ethiopia in 2008.Pacific Science Center is the only science center in North America with two IMAX theaters. IMAX films give educators, students and families exciting opportunities to explore new worlds. Educational documentary-style films focus on a broad range of subjects covering the environment, nature, geography, the arts, technology, space exploration and more.</Description>
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        <Description>EDUCATION: A) WASHINGTON STATE LASER- GIVEN THE EVER-INCREASING COMPLEXITY OF TODAY'S SCIENCE AND TECHNOLOGY, SCHOOL DISTRICTS NEED THE BEST TOOLS, THE BEST INFORMATION AND THE BEST SUPPORT AVAILABLE. WASHINGTON STATE LASER (LEADERSHIP AND ASSISTANCE FOR SCIENCE EDUCATION REFORM) PROVIDES PROFESSIONAL DEVELOPMENT TO SCHOOL DISTRICTS ACROSS THE STATE, SHOWING TEACHERS AND EDUCATORS THE BEST METHODS TO PRESENT INTERACTIVE SCIENCE EDUCATION IN THEIR CLASSROOMS. THE PROGRAM IS A PARTNERSHIP AMONG PACIFIC SCIENCE CENTER, THE NATIONAL SCIENCE RESOURCES CENTER, THE WASHINGTON STATE OFFICE OF SUPERINTENDENT OF PUBLIC INSTRUCTION, PACIFIC NORTHWEST NATIONAL LABORATORIES, EDUCATIONAL SERVICE DISTRICTS AND LEADING WASHINGTON SCHOOL DISTRICTS.B) PORTAL TO THE PUBLIC- AS PART OF OUR BROAD PORTAL TO THE PUBLIC INITIATIVE, PACIFIC SCIENCE CENTER CREATES AND HOSTS EVENTS THAT BRING SCIENTISTS AND THE GENERAL PUBLIC TOGETHER. THESE EVENTS PUT A REAL HUMAN FACE ON THE RESEARCH HAPPENING AT THE UNIVERSITIES, GOVERNMENT AGENCIES AND COMPANIES THAT ARE RIGHT IN OUR OWN BACKYARD. THROUGH COLLABORATIONS WITH SUCH INSTITUTIONS AS THE UNIVERSITY OF WASHINGTON AND THE NATIONAL OCEANIC AND ATMOSPHERIC ADMINISTRATION (NOAA), PACIFIC SCIENCE CENTER HAS HOSTED EVENTS SUCH AS EARTH REVEALED, MARINE EXPLORATION WEEKEND, POLAR SCIENCE WEEKEND AND LIFE SCIENCES RESEARCH WEEKEND. THE PORTAL TO THE PUBLIC INITIATIVE IS FUNDED BY THE NATIONAL SCIENCE FOUNDATION.</Description>
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        <Description>THE PACIFIC SCIENCE CENTER OPERATES THE MERCER SLOUGH ENVIRONMENTAL EDUCATION CENTER IN COLLABORATION WITH THE CITY OF BELLEVUE, WHO OWNS THE BUILDINGS AND LAND. LOCATED ON A 320-ACRE WETLAND IN THE HEART OF URBAN BELLEVUE, THE MERCER SLOUGH ENVIRONMENTAL EDUCATION CENTER (MSEEC) HOSTS FIELD TRIPS, SLEEPOVERS, CAMPS, EXPEDITIONS, INTERNSHIPS, PARTIES AND PUBLIC OUTREACH PROGRAMS, ALL WITH A COMMON PURPOSE: TO PLANT SEEDS OF WONDER AND CURIOSITY ABOUT THE ENVIRONMENT THAT WILL HAVE A LIFELONG IMPACT. HERE, CHILDREN AND FAMILIES EXPLORE THE NETWORK OF TRAILS, WATERWAYS AND WILDLIFE AND THEN RETURN TO THE MSEEC TO STUDY THE SCIENCE BEHIND WHAT THEY'VE SEEN. SCIENCE ON WHEELS- EACH YEAR, SCIENCE ON WHEELS TRAVELS THROUGHOUT THE STATE TO BRING FUN, INFORMAL EXPERIENCES WITH SCIENCE TO SCHOOLS, FAIRS, AND COMMUNITY EVENTS. USING VANS FILLED WITH EXHIBITS AND DEMONSTRATION MATERIALS, SCIENCE ON WHEELS TEACHERS PRESENT PROGRAMS ON A WIDE RANGE OF TOPICS, INCLUDING GEOLOGY, PHYSICS, MATH, ASTRONOMY, ANATOMY, AGRICULTURE, AND ENGINEERING. THE PROGRAM IS ESPECIALLY IMPORTANT FOR THOSE COMMUNITIES WHO ARE GEOGRAPHICALLY ISOLATED AND ARE WITHOUT ACCESS TO MUSEUMS, UNIVERSITIES AND SCIENCE CENTERS, SO THEY CAN EXPERIENCE SCIENCE IN A LIVELY FORMAT NOT AVAILABLE IN THE CLASSROOM.ACCESO A LA CIENCIA- ACCESO A LA CIENCIA IS DESIGNED TO INCREASE THE INVOLVEMENT OF LATINO STUDENTS, PARENTS AND FAMILIES IN SCIENCE AND INFORMAL SCIENCE EDUCATION. THE PROGRAM RECRUITS LATINO TEENS FROM ACROSS EASTERN WASHINGTON AND GIVES THEM THE OPPORTUNITY TO BE ADVOCATES FOR SCIENCE IN THEIR COMMUNITIES. AT FAIRS, SCHOOLS AND COMMUNITY CENTERS, THE INTERNS SET UP AND INTERPRET BILINGUAL EXHIBITS AND PERFORM ENGAGING BILINGUAL SCIENCE SHOWS, ALLOWING FOR HANDS-ON SCIENCE EDUCATION TO REACH A NEW AUDIENCE. FUNDED BY A NATIONAL SCIENCE FOUNDATION GRANT, THE PROGRAM IS A UNIQUE COLLABORATION BETWEEN DIFFERENT COMMUNITY RESOURCES: PACIFIC SCIENCE CENTER, YAKIMA VALLEY/TRI-CITIES MESA, RADIO KDNA, AND WASHINGTON STATE UNIVERSITY TRI-CITIES.DISCOVERY CORPS- PACIFIC SCIENCE CENTER'S DISCOVERY CORPS PROGRAM WORKS TO INSPIRE TEENS (AGES 14-18) TO CONSIDER A CAREER IN SCIENCE BY GIVING THEM THE OPPORTUNITY TO LEARN AND WORK AT OUR MUSEUM. IN ADDITION TO FULFILLING 100 HOURS OF SERVICE ON OUR MUSEUM FLOOR, THE TEENS HAVE THE OPPORTUNITY TO MOVE UP THROUGH A DEFINED CAREER LADDER, AND PARTICIPATE IN FIELD TRIPS, LECTURES, FUN SOCIAL EVENTS AND WORKSHOPS ON TOPICS RANGING FROM JOB AND LIFE SKILLS TO COLLEGE PREPAREDNESS. PAID INTERNSHIPS ARE ALSO AVAILABLE WHICH ARE DESIGNED SPECIFICALLY FOR THE PROGRAM. THE MAJORITY OF TEENS IN DISCOVERY CORPS ARE FROM BACKGROUNDS TRADITIONALLY UNDERSERVED IN THE SCIENCES.LECTURES- PACIFIC SCIENCE CENTER HOSTS LECTURES BY AUTHORS, SCIENTISTS AND LEADERS BOTH FROM OUR REGION AND AROUND THE WORLD. PAST LECTURERS HAVE INCLUDED JAMES D. WATSON, THE CO-DISCOVERER OF DNA, AND FORMER KING COUNTY EXECUTIVE RON SIMS.PLANETARIUM- THE WILLARD SMITH PLANETARIUM HOSTS SCHOOL GROUPS AND THE GENERAL PUBLIC WHO WANT TO EXPLORE SPACE FROM OUR MUSEUM FLOOR. OUR PLANETARIUM IS ONE OF VERY FEW IN THE UNITED STATES THAT FEATURES LIVE INTERPRETATION INSTEAD OF PRE-TAPED SHOWS, WHICH MAKES OUR EXPERIENCE MORE INTERACTIVE. ADDITIONALLY, ALL SHOWS ALIGN WITH WASHINGTON STATE SCIENCE EDUCATION STANDARDS.</Description>
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        <EOY>37505517</EOY>
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        </ContributorNameBusiness>
        <ContributorAddressUS>
          <AddressLine1>RESTRICTED</AddressLine1>
          <AddressLine2>RESTRICTED</AddressLine2>
          <City>RESTRICTED</City>
          <State>RESTRICTED</State>
          <ZIPCode>RESTRICTED</ZIPCode>
        </ContributorAddressUS>
        <AggregateContributions>RESTRICTED</AggregateContributions>
      </ContributorInfo>
    </IRS990ScheduleB>
    <IRS990ScheduleC documentId="RetDoc1039600001">
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      </TotalDirectLobbying>
      <TotalLobbyingExpenditures>
        <FilingOrganizationsTotals>42763</FilingOrganizationsTotals>
      </TotalLobbyingExpenditures>
      <OtherExemptPurposeExpenditures>
        <FilingOrganizationsTotals>20112176</FilingOrganizationsTotals>
      </OtherExemptPurposeExpenditures>
      <TotalExemptPurposeExpenditures>
        <FilingOrganizationsTotals>20154939</FilingOrganizationsTotals>
      </TotalExemptPurposeExpenditures>
      <LobbyingNontaxableAmount>
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      </LobbyingNontaxableAmount>
      <GrassrootsNontaxableAmount>
        <FilingOrganizationsTotals>250000</FilingOrganizationsTotals>
      </GrassrootsNontaxableAmount>
      <TotLobbyingGrassrootMinusNonTx>
        <FilingOrganizationsTotals>0</FilingOrganizationsTotals>
      </TotLobbyingGrassrootMinusNonTx>
      <TotLobbyExpendMnsLobbyingNontx>
        <FilingOrganizationsTotals>0</FilingOrganizationsTotals>
      </TotLobbyExpendMnsLobbyingNontx>
      <LobbyingNontaxableAmount2>
        <CurrentYearMinus3>1000000</CurrentYearMinus3>
        <CurrentYearMinus2>1000000</CurrentYearMinus2>
        <CurrentYearMinus1>1000000</CurrentYearMinus1>
        <CurrentYear>1000000</CurrentYear>
        <Total>4000000</Total>
      </LobbyingNontaxableAmount2>
      <LobbyingCeilingAmount>6000000</LobbyingCeilingAmount>
      <TotalLobbyingExpenditures2>
        <CurrentYearMinus3>134500</CurrentYearMinus3>
        <CurrentYearMinus2>155381</CurrentYearMinus2>
        <CurrentYearMinus1>51750</CurrentYearMinus1>
        <CurrentYear>42763</CurrentYear>
        <Total>384394</Total>
      </TotalLobbyingExpenditures2>
      <GrassrootsNontaxableAmount2>
        <CurrentYearMinus3>250000</CurrentYearMinus3>
        <CurrentYearMinus2>250000</CurrentYearMinus2>
        <CurrentYearMinus1>250000</CurrentYearMinus1>
        <CurrentYear>250000</CurrentYear>
        <Total>1000000</Total>
      </GrassrootsNontaxableAmount2>
      <GrassrootsCeilingAmount>1500000</GrassrootsCeilingAmount>
    </IRS990ScheduleC>
    <IRS990ScheduleD documentId="RetDoc1040000001">
      <CurrentYear>
        <BeginningOfYearBalance>1575014</BeginningOfYearBalance>
        <Contributions>99254</Contributions>
        <InvestmentEarningsOrLosses>212085</InvestmentEarningsOrLosses>
        <AdministrativeExpenses>13159</AdministrativeExpenses>
        <EndOfYearBalance>1873194</EndOfYearBalance>
      </CurrentYear>
      <CurrentYearMinus1Year>
        <BeginningOfYearBalance>1939021</BeginningOfYearBalance>
        <InvestmentEarningsOrLosses>-364007</InvestmentEarningsOrLosses>
        <EndOfYearBalance>1575014</EndOfYearBalance>
      </CurrentYearMinus1Year>
      <BoardDesignatedEOYBalance>0.00000</BoardDesignatedEOYBalance>
      <PermanentEndowmentEOYBalance>1.00000</PermanentEndowmentEOYBalance>
      <TermEndowmentEOYBalance>0.00000</TermEndowmentEOYBalance>
      <EndowmentsHeldByUnrelatedOrgs>0</EndowmentsHeldByUnrelatedOrgs>
      <EndowmentsHeldByRelatedOrgs>0</EndowmentsHeldByRelatedOrgs>
      <Land>
        <OtherCostOrOtherBasis>4230000</OtherCostOrOtherBasis>
        <BookValue>4230000</BookValue>
      </Land>
      <Buildings>
        <OtherCostOrOtherBasis>40109667</OtherCostOrOtherBasis>
        <Depreciation>14720336</Depreciation>
        <BookValue>25389331</BookValue>
      </Buildings>
      <Equipment>
        <OtherCostOrOtherBasis>4146879</OtherCostOrOtherBasis>
        <Depreciation>2402207</Depreciation>
        <BookValue>1744672</BookValue>
      </Equipment>
      <OtherLandBuildings>
        <OtherCostOrOtherBasis>419177</OtherCostOrOtherBasis>
        <BookValue>419177</BookValue>
      </OtherLandBuildings>
      <TotalOfBookValueLandBuildings>31783180</TotalOfBookValueLandBuildings>
      <OtherLiabilities>
        <Description>CAPITAL LEASE OBLIGATIONS</Description>
        <Amount>245598</Amount>
      </OtherLiabilities>
      <TotalOfAmounts>245598</TotalOfAmounts>
      <TotalRevenue>18732274</TotalRevenue>
      <TotalExpenses>19596813</TotalExpenses>
      <ExcessOrDeficitForYear>-864539</ExcessOrDeficitForYear>
      <NetUnrealizedGLOnInvestments>135379</NetUnrealizedGLOnInvestments>
      <TotalAdjustments>135379</TotalAdjustments>
      <ExcessOrDeficitPerFS>-729160</ExcessOrDeficitPerFS>
      <TotRevenueEtcAuditedFinclStmt>19447029</TotRevenueEtcAuditedFinclStmt>
      <NetUnrealizedGainsInvestments>135379</NetUnrealizedGainsInvestments>
      <DonatedSrvcAndUseOfFacilities>21250</DonatedSrvcAndUseOfFacilities>
      <RevenueNotRptdF990>156629</RevenueNotRptdF990>
      <RevenueSubtotal>19290400</RevenueSubtotal>
      <OtherRevenuesNotIncluded>-558126</OtherRevenuesNotIncluded>
      <RevenueNotRptdOnFinStmt>-558126</RevenueNotRptdOnFinStmt>
      <TotalRevenuePerForm990>18732274</TotalRevenuePerForm990>
      <TotExpensesEtcAuditedFinclStmt>20176189</TotExpensesEtcAuditedFinclStmt>
      <DonatedServicesUseOfFacilities>21250</DonatedServicesUseOfFacilities>
      <OtherExpensesIncluded>558126</OtherExpensesIncluded>
      <ExpensesNotRptdF990>579376</ExpensesNotRptdF990>
      <ExpensesSubtotal>19596813</ExpensesSubtotal>
      <ExpensesNotRptdOnFinStmt>0</ExpensesNotRptdOnFinStmt>
      <TotalExpensesPerForm990>19596813</TotalExpensesPerForm990>
      <Form990ScheduleDPartXIV>
        <Identifier>Part V, Line 4:</Identifier>
        <ReturnReference>Description of Intended Use of Endowment Funds:</ReturnReference>
        <Explanation>TO PROVIDE A DEPENDABLE AND GROWING SOURCE OF FUNDING FOR THE OPERATION, SPECIAL PROGRAMS, AND CAPITAL IMPROVEMENT REQUIREMENTS OF THE PACIFIC SCIENCE CENTER.</Explanation>
      </Form990ScheduleDPartXIV>
      <Form990ScheduleDPartXIV>
        <Explanation>PART XII, LINE 4B - OTHER ADJUSTMENTS: COST OF GOODS SOLD: $-380,763 SPECIAL EVENT EXPENSE NETTED AGAINST REVENUE: $-177,363 PART XIII, LINE 2D - OTHER ADJUSTMENTS: COST OF GOODS SOLD: $380,763 SPECIAL EVENT EXPENSE NETTED AGAINST REVENUE: $177,363</Explanation>
      </Form990ScheduleDPartXIV>
    </IRS990ScheduleD>
    <IRS990ScheduleG documentId="RetDoc1041300001">
      <EventsInformation>
        <NameOfEvent1>FESTIVAL OF FOUNTAINS</NameOfEvent1>
        <GrossReceiptsEvent1>275499</GrossReceiptsEvent1>
        <CharitableContributionsEvent1>228499</CharitableContributionsEvent1>
        <GrossRevenueEvent1>47000</GrossRevenueEvent1>
        <OtherDirectExpensesEvent1>177363</OtherDirectExpensesEvent1>
        <GrossReceiptsTotal>275499</GrossReceiptsTotal>
        <CharitableContributionsTotal>228499</CharitableContributionsTotal>
        <GrossRevenueTotalEvents>47000</GrossRevenueTotalEvents>
        <OtherDirectExpensesTotalEvents>177363</OtherDirectExpensesTotalEvents>
        <DirectExpenseSummaryEvents>177363</DirectExpenseSummaryEvents>
        <NetIncomeSummary>-130363</NetIncomeSummary>
      </EventsInformation>
    </IRS990ScheduleG>
    <IRS990ScheduleJ documentId="RetDoc1042400001">
      <ClubDuesOrFees>X</ClubDuesOrFees>
      <WrittenPolicyReTAndEExpenses>1</WrittenPolicyReTAndEExpenses>
      <SubstantiationRequired>1</SubstantiationRequired>
      <CompensationCommittee>X</CompensationCommittee>
      <Form990OfOtherOrganizations>X</Form990OfOtherOrganizations>
      <WrittenEmploymentContract>X</WrittenEmploymentContract>
      <CompensationSurvey>X</CompensationSurvey>
      <BoardOrCommitteeApproval>X</BoardOrCommitteeApproval>
      <SeverancePayment>0</SeverancePayment>
      <SupplementalNonqualRetirePlan>0</SupplementalNonqualRetirePlan>
      <EquityBasedCompArrangement>0</EquityBasedCompArrangement>
      <CompBasedOnRevenueOfFilingOrg>0</CompBasedOnRevenueOfFilingOrg>
      <CompBasedOnRevenueRelatedOrgs>0</CompBasedOnRevenueRelatedOrgs>
      <CompBasedNetEarningsFilingOrg>0</CompBasedNetEarningsFilingOrg>
      <CompBasedNetEarningsRelateOrgs>0</CompBasedNetEarningsRelateOrgs>
      <AnyNonFixedPayments>0</AnyNonFixedPayments>
      <InitialContractException>0</InitialContractException>
      <Form990ScheduleJPartII>
        <NameBusiness>
          <BusinessNameLine1>R BRYCE SEIDL</BusinessNameLine1>
        </NameBusiness>
        <BaseCompensationFilingOrg>180207</BaseCompensationFilingOrg>
        <CompBasedOnRelatedOrgs>0</CompBasedOnRelatedOrgs>
        <BonusFilingOrg>0</BonusFilingOrg>
        <BonusRelatedOrgs>0</BonusRelatedOrgs>
        <OtherCompensationFilingOrg>0</OtherCompensationFilingOrg>
        <OtherCompensationRelatedOrgs>0</OtherCompensationRelatedOrgs>
        <DeferredCompFilingOrg>0</DeferredCompFilingOrg>
        <DeferredCompRelatedOrgs>0</DeferredCompRelatedOrgs>
        <NontaxableBenefitsFilingOrg>4979</NontaxableBenefitsFilingOrg>
        <NontaxableBenefitsRelatedOrgs>0</NontaxableBenefitsRelatedOrgs>
        <TotalCompensationFilingOrg>185186</TotalCompensationFilingOrg>
        <TotalCompensationRelatedOrgs>0</TotalCompensationRelatedOrgs>
        <CompReportPrior990FilingOrg>0</CompReportPrior990FilingOrg>
        <CompReportPrior990RelatedOrgs>0</CompReportPrior990RelatedOrgs>
      </Form990ScheduleJPartII>
      <Form990ScheduleJPartII>
        <NameBusiness>
          <BusinessNameLine1>DENNIS SCHATZ</BusinessNameLine1>
        </NameBusiness>
        <BaseCompensationFilingOrg>138365</BaseCompensationFilingOrg>
        <CompBasedOnRelatedOrgs>0</CompBasedOnRelatedOrgs>
        <BonusFilingOrg>0</BonusFilingOrg>
        <BonusRelatedOrgs>0</BonusRelatedOrgs>
        <OtherCompensationFilingOrg>33824</OtherCompensationFilingOrg>
        <OtherCompensationRelatedOrgs>0</OtherCompensationRelatedOrgs>
        <DeferredCompFilingOrg>0</DeferredCompFilingOrg>
        <DeferredCompRelatedOrgs>0</DeferredCompRelatedOrgs>
        <NontaxableBenefitsFilingOrg>4979</NontaxableBenefitsFilingOrg>
        <NontaxableBenefitsRelatedOrgs>0</NontaxableBenefitsRelatedOrgs>
        <TotalCompensationFilingOrg>177168</TotalCompensationFilingOrg>
        <TotalCompensationRelatedOrgs>0</TotalCompensationRelatedOrgs>
        <CompReportPrior990FilingOrg>0</CompReportPrior990FilingOrg>
        <CompReportPrior990RelatedOrgs>0</CompReportPrior990RelatedOrgs>
      </Form990ScheduleJPartII>
      <Form990ScheduleJPartIII>
        <ReturnReference>Part I, Line 1a</ReturnReference>
        <Explanation>PAYMENT OF MEMBERSHIP FEES AT RAINIER CLUB FOR R. BRYCE SEIDL, PRESIDENT AND CEO TOTALING $2,361.00 AND WAS NOT REPORTED TO HIM AS INCOME BECAUSE THERE WAS NO PERSONAL USE. ALL USE WAS FOR BUSINESS PURPOSES.</Explanation>
      </Form990ScheduleJPartIII>
    </IRS990ScheduleJ>
    <IRS990ScheduleM documentId="RetDoc1042900001">
      <SecuritiesPubliclyTraded>
        <NonCashCheckbox>X</NonCashCheckbox>
        <NumberOfContributions>7</NumberOfContributions>
        <NoncashContribsRptdF990>194698</NoncashContribsRptdF990>
        <MethodOfDeterminingRevenues>MARKET VALUE</MethodOfDeterminingRevenues>
      </SecuritiesPubliclyTraded>
      <FoodInventory>
        <NonCashCheckbox>X</NonCashCheckbox>
        <NumberOfContributions>9</NumberOfContributions>
        <NoncashContribsRptdF990>9287</NoncashContribsRptdF990>
        <MethodOfDeterminingRevenues>COST</MethodOfDeterminingRevenues>
      </FoodInventory>
      <OtherNonCashContributionsTable>
        <NonCashCheckbox>X</NonCashCheckbox>
        <Description>equip &amp; suppls</Description>
        <NumberOfContributions>10</NumberOfContributions>
        <NoncashContribsRptdF990>10289</NoncashContribsRptdF990>
        <MethodOfDeterminingRevenues>COST</MethodOfDeterminingRevenues>
      </OtherNonCashContributionsTable>
      <NumberOf8283Received>0</NumberOf8283Received>
      <AnyPropertyThatMustBeHeld>0</AnyPropertyThatMustBeHeld>
      <ReviewProcessUnusualNCGifts>1</ReviewProcessUnusualNCGifts>
      <ThirdPartiesUsed>1</ThirdPartiesUsed>
      <Form990ScheduleMPartII>
        <Identifier>Method for Determining Number of Contributors:</Identifier>
        <ReturnReference>Part I, Column (b):</ReturnReference>
        <Explanation>NUMBER OF CONTRIBUTIONS RECEIVED.</Explanation>
      </Form990ScheduleMPartII>
      <Form990ScheduleMPartII>
        <Identifier>Third Party Use:</Identifier>
        <ReturnReference>Part I, Line 32b:</ReturnReference>
        <Explanation>STOCK BROKER SELLS DONATED SECURITIES FOR CASH.</Explanation>
      </Form990ScheduleMPartII>
    </IRS990ScheduleM>
    <IRS990ScheduleO documentId="RetDoc1044400001">
      <GeneralExplanation>
        <Identifier>Form 990, Part VI, Section B, line 11</Identifier>
        <Explanation>The 990 is reviewed internally by the Controller &amp; CFOO. Then it is presented to the Board Finance Committee who reviews it with the accounting firm, the President, CFOO and Controller. Lastly, the Board Finance Committee presents the 990 to the full Board indicating their recommendations as to its completeness and accuracy. All board members receive a copy of the return before it is filed.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <Identifier>Form 990, Part VI, Section B, line 12c</Identifier>
        <Explanation>ALL BOARD MEMBERS ARE REQUIRED TO COMPLETE THE QUESTIONNAIRE ANNUALLY. MANAGEMENT REVIEWS THE POLICIES AND CONSIDERS THE SOURCE AND IMPACT OF ANY CONFLICTS. IF A CONFLICT IS FOUND, THAT BOARD MEMBER REFRAINS FROM DISCUSSING OR VOTING ON THAT PARTICULAR MATTER.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <Identifier>Form 990, Part VI, Section B, line 15</Identifier>
        <Explanation>FOR OFFICERS OF THE ORGANIZATION, COMPENSATION IS DETERMINED BY REVIEW OF DATA FROM LOCAL 990S, SALARY SURVEYS, INPUT FROM HUMAN RESOURCE PROFESSIONALS AND BOARD MEMBER REVIEW. IN 2003, OUR CURRENT PRESIDENT &amp; CEO WAS HIRED AND HIS COMPENSATION WAS DETERMINED USING THE CRITERA STATED ABOVE AND FINALIZED BY A COMMITTEE MADE UP OF BOARD MEMBERS. AN EMPLOYMENT CONTRACT WAS PUT IN PLACE STATING THE EXPECTATIONS AND COMPENSATION. IN 2007, TOTAL COMPENSATION WAS REVIEWED TO MARKET AND A NEW EMPLOYMENT AGREEMENT WAS FINALIZED. IN 2009, THE CFOO POSITION WAS REPLACED AND THE PRESIDENT WORKED WITH A COMMITTEE OF BOARD MEMBERS TO DETERMINE THE COMPENSATION LEVEL BASED UPON INPUT AS STATED ABOVE. SALARIES FOR KEY EMPLOYEES ARE REVIEWED ANNUALLY AND A MARKET ADJUSTMENT WAS GIVEN TO THE CFO IN DECEMBER 2009.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <Identifier>Form 990, Part VI, Section C, line 19</Identifier>
        <Explanation>available by request.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <Identifier>FORM 990, PART I, LINE 6</Identifier>
        <Explanation>VOLUNTEERS ARE INVOLVED IN MANY ASPECTS OF THE PACIFIC SCIENCE CENTER. SOME PROVIDE ASSISTANCE THROUGH OUR SCIENCE INTERPRETATION PROGRAM BY ASSISTING OUR VISITORS WITH SCIENCE EXPLORATION AND INFORMAL EDUCATION, SOME ASSIST WITH OUR OFFSITE SUMMER CAMPS BY RUNNING ACTIVITIES WITH CAMPERS AND MONITORING THEIR BEHAVIOR ON FIELD TRIPS. WE ALSO HAVE VOLUNTEERS WHO ASSIST WITH MAINTAINING EXHIBITS, ANIMAL CARE, HORTICULTURE, AS WELL AS ASSIST WITH VARIOUS OFFICE TASKS. THIS PAST YEAR THEY CONTRIBUTED OVER 25,000 HOURS. ALL 26 MEMBERS OF THE BOARD OF DIRECTORS ARE VOLUNTEERS.</Explanation>
      </GeneralExplanation>
    </IRS990ScheduleO>
  </ReturnData>
</Return>