What this lesson teaches
This activity teaches the importance of clean water and basic filtration methods. Students learn how impurities can be removed from water using simple techniques.
Build a simple water purification model using everyday materials!
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This activity teaches the importance of clean water and basic filtration methods. Students learn how impurities can be removed from water using simple techniques.
Sign in to view the full materials list and the printable learner version.
Hands-on activities like this make learning fun and memorable. By constructing the model, students actively engage with scientific concepts, enhancing their understanding and retention.
1. Cut the plastic bottle in half and keep the top half. 2. Place cotton balls in the neck of the bottle. 3. Add a layer of sand on top of the cotton balls. 4. Put a layer of gravel on top of the sand. 5. Slowly pour dirty water into the bottle and collect the filtered water in the container below. 6. What did you notice?