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Water Body Salinities I
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In this activity, learners investigate the different salinity levels of oceans, rivers and estuaries.
What is Light?
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In this four-part activity, learners will discover the exciting world of light--the most important form of energy in our world--and be able to identify and describe different types of light.
The Water Cycle
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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.
Water, Water Everywhere
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In this activity, learners estimate how much water they think can be found in various locations on the Earth in all its states (solid, liquid, and gas) to discover the different water ratios in the Ea
Causes and Effects of Melting Ice
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In this activity, learners explore the concept of density-driven currents (thermohaline circulation) and how these currents are affected by climate change.