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In this activity, learners discover the difficulty of ocean exploration by human beings as they investigate water pressure.

In this demonstration, learners can observe a number of small convection cells generated from a mixture of aluminum powder and silicon oil on a hot plate.

In a class demonstration, learners observe a simple water cycle model to better understand its role in pollutant transport.

Did you know that the water we use today is the same water found on Earth millions of years ago? The Earth constantly uses and recycles water in a process called the water cycle.