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Rusty Penny
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In this easy chemistry activity, learners submerge pennies in different liquids (water, lemon juice, vinegar, liquid hand soap, salt water, and baking soda mixed with water) to observe which best clea
The Scoop on Habitat
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Some aquatic organisms live in open water, while some live in soil at the bottom of a body of water.
Counting With Quadrants
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Millions of organisms can live in and around a body of water.