US Environmental Protection Agency
Water Purification by Evaporation and Condensation
This easy-to-perform demonstration shows students how the water cycle, specifically the processes of condensation and evaporation, purifies Earth's water supply. Just mix up some water, dirt, and gravel in a glass bowl, place a cup in...
US Environmental Protection Agency
Non-Point Source Pollution
Investigate the different types of pollution that storm drain runoff carries into oceans, lakes, rivers, and streams with this class demonstration. Using an aquarium and an assortment of everyday items that contaminants like motor oil,...
UNESCO
The Water Cycle
Young scientists get their feet wet as they learn about the water cycle in this series of activities. Whether they are observing how evaporation causes puddles to dry up, or how plants put water into the atmosphere through transpiration,...
Columbus City Schools
What is Up Th-air? — Atmosphere
Air, air, everywhere, but what's in it, and what makes Earth's air so unique and special? Journey through the layers above us to uncover our atmosphere's composition and how it works to make life possible below. Pupils conduct research...
Other popular searches
- Biosphere and Hydrosphere
- Hydrosphere and Lithosphere
- Lithosphere Hydrosphere
- Hydrosphere +"Atmosphere"
- Hydrosphere "Atmosphere
- Hydrosphere and Atmosphere
- Hydrosphere and Pollution
- Lithosphere, Hydrosphere
- Hydrosphere Atmosphere
- Hydrosphere "Atmosphere"
- Hydrosphere +Atmosphere
- Hydrosphere "Stmosphere