Earth Day Network
Filtering Water
See the water filtration system up close with a fun science experiment. Young scientists work for several class periods to design a water filter using household objects, and then decide which filter material would be most effective in...
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...
San Francisco Public Utilities Commission
Recycled Water: A Smart Way to Reuse Water
Learn about wastewater and recycled water with a science reading activity. After learners finish a two-page passage about conserving the water supply, they answer six comprehension questions about what they have read.
Curated OER
Drinking Water
In this drinking water worksheet, students complete a crossword puzzle given 23 clues about drinking water purification, water content, contaminants, and softeners.
Curated OER
What Happened To The Chesapeake Bay Filtering System?
In this Chesapeake Bay worksheet, students read a dialogue between 2 people about what had happened to the Chesapeake Bay filtering system, and answer short answer questions about it. Students complete 4 questions.
Curated OER
What Happened to the Chesapeake Bay Filtering System?
For this environmental science lesson, students write a short story about what it's like to help at an oyster garden. They formulate 2 hypotheses on the disappearance of oysters in Chesapeake Bay.