Science in the Summer (SIS), a free, grant-funded STEM enrichment program for elementary school students from second to sixth grade. In its 32nd year, SIS provides science instruction through local libraries and other community facilities. This year’s subject is “The Science of Space.”

Classes will begin soon in Philadelphia, with numerous locations in Northwest Philadelphia.

The program is used to counter “summer slide,” which is when students lose their learning momentum during summer vacation. The curriculum includes activities that can be repeated at home. Examples of this year’s activities include making and operating straw rockets; comparing the effects of UV rays on UV-sensitive beads (they glow when exposed), with and without sunscreen; and making and operating rockets made of film canisters fueled with antacids and water.

Local classes are being held as follows:

Falls of Schuylkill Library in East Falls – July 5 and 6, 10 a.m to 3 p.m.

Chestnut Hill Library – July 19 and 20, 10 a.m. to 3 p.m.

Joseph Coleman NW in Germantown – July 21 and 28, 10 a.m. to 3 p.m.

Wadsworth Library in East Mount Airy, July 26 and 27, 10 a.m. – 12 p.m. and 1 p.m. to 3.

To register, visit scienceinthesummer.com/how-to-register.html.

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