Simple Water Filters 

Simple Water Filters/ Biology / Freshman - Grade  / Water / Chemical Reactions/ Biochemistry

Summary: In this activity, students build a simple water filter out of household items while also  learning about the 5 steps that water needs to go through before it is drinkable.   Students use information learned about chemical reactions to create a cup of water that is free and clear of any pollutants.

Materials: Coffee filters, sand, gravel, activated carbon, plastic cups, water bottles, rubber bands, funnels, shredded paper, cotton balls, cheese cloth

Student handout