Is it real?
Yes. Never revoked by the IRS. Latest filing on record: FY2025. IRS ruling in Sep 1983.
IRS Pub. 78 · IRS Auto-Revocation List · IRS Business Master File
Where the money goes
78 cents of each dollar spent went to programs.
Form 990 Part IX, line 25, columns B–D. Every line is in By the numbers.
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Who runs it and what they're paid
8 people listed on the 990; $76K paid to officers and key staff.
Hagos Tewolde Negusse’s $83K as Animator Web Design is at the 21st percentile of top reported officer pay among 3395 $1–10M education nonprofits. Peer set: organizations in the same NTEE major field of work and revenue-size band, compared on each org’s own highest-paid officer/key-employee, from Form 990 Part VII / 990-PF Part VIII. Descriptive placement, not a verdict on whether the pay is appropriate.
Compensation history total reportable pay by year · 8 named individuals · Part VII
| Name | FY2025 | FY2024 | FY2023 | FY2022 | FY2021 | FY2020 |
|---|---|---|---|---|---|---|
| Hagos Tewolde Negusse | $83,200 | $66,560 | $62,400 | $27,600 | $28,800 | $32,400 |
| Art Williams | $83,200 | $66,560 | $62,400 | — | $41,600 | — |
| Althea Weber | $56,160 | $52,000 | $47,840 | $21,600 | — | — |
| Arthur Williams | — | — | — | $45,360 | — | $43,680 |
| Gaetano Palazzo | $25,623 | $38,471 | $4,032 | — | — | — |
| Monica Esqueda | $11,610 | $17,550 | $33,085 | — | — | — |
| Susana Esqueda | $26,641 | — | — | — | — | — |
| Selamawit Tesfaldet | $22,790 | $3,600 | — | — | — | — |
Total reportable compensation (Form 990 Part VII column D / Schedule J column E) by filing year, matched by name within this organization. The Schedule J base / bonus / deferred breakdown is not parsed into this dataset.
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Questions the 990 asks
The form asks each of these directly. These are the filed answers.
- Family or business ties among officersPt VI · Ln 2No
- Top official's pay set by an independent reviewPt VI · Ln 15aNo
Programs and updates
Offers free online science and math curriculum, plus environmental field trips and museum access.
Questions for Math-Science Nucleus
Your first name shows with your question. Math-Science Nucleus answers here, for everyone.
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Manage Tule Ponds at Tyson Lagoon, Fremont a 17 acre wetlands for tours, volunteer, public education and field trips (in person and virtual), manage Masonic Home Composting and Reforestation project in Union City, CA.
Provides science and math curriculum through online, field trips, virtual classes online. Develop curriculum and put online for English speaking schools; Develop storybooks and slides for children and teachers. We are working on transferring electronic materials which are free for all into html5 so can be viewed.
Maintain children's Natural History Museum including fossils and artifacts from local area; Maintain California Nursery Historical Park Museum; maintain Earthquake Exhibit in Fremont. This year we provided virtual classes to over 10,000 children throughout the local community working with different school districts.
Funders
Who pays for it.
From grant filings on record. Receipts are incomplete: individual donors are never listed.
Grants
By the numbers
The FY2020 990, line by line.
Download 990
| Line | Start FY20 | End FY20 |
|---|---|---|
| Cash and savingsLn 1–2 | $305K | $300K |
| InvestmentsLn 11–13 | $0 | $0 |
| Land, buildings, equipmentLn 10c | $0 | $0 |
| Total assetsLn 16 | $805K | $838K |
| LiabilitiesLn 26 | $0 | $0 |
| Net assetsLn 32 | $805K | $838K |
| Line | Total | Programs | Management | Fundraising |
|---|---|---|---|---|
| Pay of current officers, directors and key staffLn 5 | $0 | $0 | $0 | $0 |
| Pay of disqualified personsLn 6 | $0 | $0 | $0 | $0 |
| Other salaries and wagesLn 7 | $86K | $75K | $11K | $0 |
| Pension plan contributionsLn 8 | $0 | $0 | $0 | $0 |
| Other employee benefitsLn 9 | $44K | $20K | $24K | $0 |
| Payroll taxesLn 10 | $0 | $0 | $0 | $0 |
| Advertising and promotionLn 12 | $0 | $0 | $0 | $0 |
| Office expensesLn 13 | $27K | $2K | $25K | $0 |
| Information technologyLn 14 | $9K | $8K | $1K | $0 |
| RoyaltiesLn 15 | $0 | $0 | $0 | $0 |
| OccupancyLn 16 | $36K | $36K | $0 | $0 |
| TravelLn 17 | $2K | $2K | $0 | $0 |
| Travel and entertainment for public officialsLn 18 | $0 | $0 | $0 | $0 |
| Conferences, conventions and meetingsLn 19 | $0 | $0 | $0 | $0 |
| InterestLn 20 | $0 | $0 | $0 | $0 |
| Payments to affiliatesLn 21 | $8K | $8K | $0 | $0 |
| Depreciation, depletion and amortizationLn 22 | $0 | $0 | $0 | $0 |
| InsuranceLn 23 | $13K | $13K | $0 | $0 |
| Other expenses (24a–d)Ln 24 | $59K | $59K | $0 | $0 |
| All other expensesLn 24e | $0 | $0 | $0 | $0 |
| Total functional expensesLn 25 | $284K | $223K | $61K | $0 |
Filing history
| Year | Money in | Money out | In minus out | Net assets | Download |
|---|---|---|---|---|---|
| FY2025 Latest | $1.8M | $2.1M | −$333K | $2.8M | 990 PDF |
| FY2024 | $3.3M | $2.1M | $1.2M | $3.1M | 990 PDF |
| FY2023 | $657K | $681K | −$24K | $5.6M | 990 PDF |
| FY2022 | $448K | $405K | $43K | $6.0M | 990 PDF |
| FY2021 | $324K | $247K | $77K | $915K | 990 PDF |
| FY2020 Viewing | $317K | $284K | $33K | $838K | 990 PDF |
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Schedules filed Part IV
See the full FY2020 990 (6 parts)
Part I · Summary $317,098 revenue, 12 lines filed
Part VI · Governance 6 of 6 board members independent, 3 to look at
Part VIII · Statement of revenue $317,098 across 14 lines filed
Part IX · Statement of functional expenses $284,098 across 20 lines filed
Part X · Balance sheet $838,430 assets, 24 lines filed
Part XI · Reconciliation of net assets $838,430 net assets at year end
Form 990 e-file (XML) FY2020 from the IRS · Classification, formation year and address from the IRS Business Master File
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