3:00 - 3:15
美國
Can you break the water's surface tension? Learn about surface tension and combustion through 2 amazing experiments.
For the surface tension experiment, gather 1 or 2 tablespoons of blackpepper, 1 cup of water, 1 tablespoon of dishwashing liquid and 1 small empty bowl.
For the combustion experiment, gather 1 candle, a glass of water, an empty glass that is big enough to cover your candle and a plate for this challenge with YELL 2020 teen intern Aashka.
Tune in to SFPL YouTube.
STEM Challenge Yo’Self | Teen Takeover is created by the San Francisco Public Library from the Youth Engaged in Library Leadership (YELL) STEM team. Stay STEM-tastic by reading, learning and experimenting at home. Gather materials for a new challenge posted at 3pm on weekdays throughout October. Visit www.sfpl.org/stemchallenge for more resources.
手工藝 • 館內營
來三藩市公立圖書館,透過才華橫溢的藝術家、製造商甚至本地兒童圖書館員參與的工藝活動尋找靈感。除非另有公佈,所有工藝活動皆會提供材料。