What this lesson teaches
By layering different materials, children see how filtration separates impurities from water. This hands-on activity illustrates the concept of separation methods in a clear and visually engaging way.
Can you finish rainbow water filter in about 25 min?
You will by layering different materials, children see how filtration separates impurities from water.
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By layering different materials, children see how filtration separates impurities from water. This hands-on activity illustrates the concept of separation methods in a clear and visually engaging way.
Engaging in hands-on filtration encourages children to visualize the separation process. This aligns with dual coding theory, as they create mental images of how layers interact while observing the effects in real-time.
1. Gather a plastic bottle, scissors, cotton, sand, and coffee filter. 2. Cut the bottom off the plastic bottle to create a funnel. 3. Place the coffee filter inside the neck of the bottle. 4. Layer cotton, sand, and then some pebbles on top. 5. Pour dirty water slowly through the filter and collect the clean water below. 6. Observe the filtered water and discuss what materials worked best.