Water Filtration Project: Make Your Own Water Filters - Activity

Materials List: Water Filtration Project:
Make Your Own Water Filters

1 liter of water prepared in advance with soil and sand in it until it is thin but relatively opaque
3 test tubes prepared with the water standards "A," "B" and "C" (C is filtered through some grass, B is filtered through a coffee filter, and A is filtered through 2 coffee filters with a paper towel in the middle)
cotton balls
gauze squares
tulle/netting
tissue
paper towels
coffee filters
gravel (aquarium gravel works great)
sand
3 test tubes per student
test tube racks
graduated cylinders
Design Components Worksheet