NASA
Make a Planetary Exploration Balloon
Balloons aren't just for parties! An inquiry-based lesson explores the idea of using balloons for space exploration. Learners become engineers as they attempt to control the ascent and descent of a helium balloon using different masses.
Curated OER
WHY DO SOME THINGS FLOAT WHILE OTHERS SINK
Learners explore how density can cause things to sink or float by experimenting with a jar, oil and corn syrup.