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In this activity, learners explore how engineering has developed various means to remove impurities from water.

An estuary is a body of water that is created when freshwater from rivers and streams flows into the saltwater of an ocean.

In this design challenge activity, learners design and build a solar hot water heater. Their goal is to create a heater that yields the highest temperature change.

In this hands-on science experiment, students combine their understanding of the different states of matter and the characteristics of various chemical reactions.

In the wild, small crustaceans known as brine shrimp live in marine habitats such as saltwater lakes.