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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.
Acid Rain
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In this chemistry demonstration, acid rain is simulated in a petri dish.
Seas in Motion
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In this outdoor, beach activity, learners use tennis balls, water balloons and other simple devices to investigate the movement of waves and currents off a sandy beach.
Rock Bottoms
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Learners add acid rain (nitric acid) to two cups that represent lakes. One cup contains limestone gravel and the other contains granite gravel.
Burning Issues
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Learners use a candle to investigate the products of combustion. When a glass rod is held over a lit candle, the candle flame deposits carbon on the rod.
Liesegang Rings
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This display shows slow chemical reactions in colorful crystal formations known as Liesegang Rings. These reactions are similar to those forming the rings in agates.
Corals on Acid
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The objective of this inquiry-based lesson is for learners to gain an understanding of how increasing ocean acidity can affect the calcification of marine organisms.
Runaway Runoff
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When it rains, water can collect on top of and seep into the ground. Water can also run downhill, carrying soil and pollution with it.
Solving Dissolving
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The Sacred Cenote at Chichén Itzá is a sink hole, or well, containing groundwater. In this activity, learners create their own cenote using chalk, limestone, acids, and rain water.
Dip Dip, Hooray
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Lakes, streams and other freshwater bodies are a habitat for lots of living things, big and small.
Monitoring Amphibians
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In this field study, learners discover how to collect data in the field and how their efforts can help certain animals, specifically, amphibians.
Clear Water, Murky Water
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How do scientists measure how clear or murky water in a lake is? How does water clarity (clearness) affect what lives in the lake?