Curated OER
I Need Room to Breathe
Seventh graders explore how exercise affects carbon dioxide levels in exhaled air.
Curated OER
The Science of Respiration and Blood Circulation
Fifth graders study how respiration and circulation are connected. For this respiratory lesson students complete several activities to better understand heart rate and carbon dioxide in the body.
NASA
Cleaning Water
From their sweat to the water vapor in their breath, astronauts recycle every possible drop of water while in space. After watching a short video describing the different ways materials are recycled and reused in space shuttles, young...
NASA
Cleaning Water
Give young scientists a new appreciation of fresh, clean drinking water. After learning about the ways astronauts recycle their air and water, your class will work in small groups creating and testing their very own water filtration...