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Wild Sourdough
Source Institutions
In this activity, learners explore chemistry and the microbial world by making their own sourdough starter and bread at home using only flour and water.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-509.png?itok=B-jqFCWJ)
Globe at Night
Source Institutions
In this international citizen science activity, learners measure their night sky brightness and submit their observations into an online database.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-856.png?itok=iJuzU5Jf)
Monitoring Amphibians
Source Institutions
In this field study, learners discover how to collect data in the field and how their efforts can help certain animals, specifically, amphibians.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-471.png?itok=WfOK1v23)
Air Cannon
Source Institutions
In this quick and easy activity, learners build an air cannon "drum" and see what happens when they "shoot" puffs of air at different targets.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-470.png?itok=ylAw3ah2)
Amazing Air
Source Institutions
In this activity, learners construct a small "air cannon," and use its airflow to put out a candle (lit with the help of an adult).