| Application deadline | February 5, 2027 (2027 cycle) | March 1, 2027 (2027 cycle) | Unconfirmed — check official site |
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| Cost | Catalog terms: Free attendance; check separate expenses; 2027: Unconfirmed — check official site | Unconfirmed — check official site | Unconfirmed — check official site |
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| Financial aid | Unconfirmed — check official site | Unconfirmed — check official site | Unconfirmed — check official site |
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| Expenses and aid conditions | Catalog terms: Application fee (nonrefundable): $75. Fee waivers are available for students experiencing financial hardship.; 2027: Unconfirmed — check official site | Unconfirmed — check official site | Unconfirmed — check official site |
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| Stipend or pay | Unconfirmed — check official site | Weekly salary: $500 (2027 cycle) | Catalog terms: Summer I fellowship award/stipend: $4,000; 2027: Unconfirmed — check official site; Catalog terms: Summer II fellowship award: $4,000; 2027: Unconfirmed — check official site |
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| Eligibility | Grade 11 when applying; summer rising grade is one higher | Grade 12 and first-year college; Grade timing: Unconfirmed — check official site | Grades 10–12 when applying; check the provider's rules for graduating seniors |
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| Additional eligibility | Minimum age 16; Citizenship: U.S. citizen or permanent resident; Requirement: Open to students currently in grade 11 when applying; Requirement: At least 16 years old by the start of the program | Citizenship: US citizen; Residency: IL; Requirement: Open to grades 12–13; Requirement: High school senior in the 2027-2028 school year or a 2027 high school graduate; Requirement: Enrolled in an Illinois high school; Requirement: Proof of medical insurance | Requirement: Open to students currently in grades 10–12 when applying; Requirement: Family annual income must not exceed 300% of the Federal Poverty Guidelines, documented by a 1040, free/reduced lunch, SNAP/WIC, TRIO participation or SAT/ACT fee-waiver eligibility; Requirement: Must have completed at least one high school chemistry course; Requirement: Must demonstrate an interest in science and/or chemistry; Requirement: Students under 18 need a parent or guardian's permission; Requirement: In the 2026 cycle, graduating high school seniors were also eligible |
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| Session dates or duration | Starts June 28, 2027; Ends August 6, 2027; 6 weeks (2027 cycle) | Starts July 12, 2027; Ends August 6, 2027; 4 weeks (2027 cycle) | Catalog terms: 8–10 weeks; 2027: Unconfirmed — check official site |
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| Format | In person | Hybrid | In person / Online |
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| Housing and supervision | Residential. Supervision and housing details: Unconfirmed — check official site | Non-residential. Supervision and housing details: Unconfirmed — check official site | Non-residential. Supervision and housing details: Unconfirmed — check official site |
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| Location | Stony Brook, NY | IL | Participating university, government, and industry research sites; virtual projects may also be offered |
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| Selection and application | Application materials: Two teacher recommendations (math or science teachers preferred) | Application materials: Letter of recommendation from a STEM teacher or STEM club advisor | Selection: Local coordinators select among financially and academically eligible applicants based on performance, science interest, full-summer availability, site capacity/budget, safe commute, and mentor/project fit. ACS publishes no single current acceptance rate. |
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| Official sources | Source 1 · checked 2026-10-24Source 2 · checked 2026-10-24Source 3 · checked 2026-10-24Source 4 · checked 2026-10-24Source 5 · checked 2026-08-21Source 6 · checked 2026-08-21Source 7 · checked 2026-08-21 | Source 1 · checked 2026-10-24 | Source 1 · checked 2026-10-24Source 2 · checked 2026-10-24Source 3 · checked 2026-08-20 |
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