Can you purify dirty water with a water filtration system? Learn about filtration and make your own water filter at home or in the classroom. All you need are a few simple supplies and some dirty water you can mix up yourself to get started. We love fun, hands-on STEM projects for kids!
WATER FILTER PROJECT FOR KIDS
HOW TO FILTER WATER
Our local water departments use many different methods to give us safe drinking water, and filtration is just one of them. Filtration systems use many different layers or filters, such as charcoal, sand, fibers, even plants.
Water filtration is the process of removing or reducing the particles, bacteria, algae, viruses, and other contaminants to produce safe and clean water.
This water filtration lab below uses coffee filters and cotton balls to filter your dirty water. How clean can you get your water? Let’s find out!
WATER FILTRATION ACTIVITY
This method of using rice, coffee filters, and cotton balls is NOT SAFE for drinking, but it will give you an idea of how water filtration works.
- Water bottle
- Coffee filters
- Rubber band
- Cotton balls
STEP 1: Cut the bottom off of your water bottle.
STEP 2: Mix a cup of dirt with a cup of water, stir and let sit for 5 minutes.
STEP 3: Crumple up one coffee filter and stuff into the top of your water bottle.
STEP 4: Now place 6 cotton balls on top of that.
STEP 5: Pour a cup of rice into the bottle.
STEP 6: Place another coffee filter around the top of the bottle and fasten with a rubber band.
STEP 7: Now place your bottle into a glass, top down, and pour your dirt water combo into the bottle.
Did it do a good job of filtering the dirt?
MORE FUN THINGS TO BUILD
BUILD A WATER FILTER FOR STEM
Click on the image below or on the link for awesome engineering activities for kids.