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Drying It Out
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In this activity, learners investigate and compare the rate of drying in different conditions.
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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.
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Desert Water Keepers
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In this outdoor, sunny day activity, learners experiment with paper leaf models to discover how some desert plants conserve water.
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LEGO® Chemical Reactions
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This activity uses LEGO® bricks to represent atoms bonding into molecules and crystals. The lesson plan is for a 2.5 hour workshop (or four 45-minute classes).
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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.
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Moisture Makers
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In this outdoor activity, learners compare the moisture released from different kinds of leaves and from different parts of the same leaf, by observing the color change of cobalt chloride paper.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-552.jpg?itok=kYSXsmk-)
Separating a Mixture
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This activity was designed for blind learners, but all types of learners can explore means of physically separating a mixture using dissolving, filtration, and evaporation.
Disappearing Water
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In this outdoor water activity, learners explore evaporation by painting with water and tracing puddles. Learners will discover that wet things become dry as the water evaporates.
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Salt Painting
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In this art meets chemistry activity, early learners discover the almost magical absorbent properties of salt while creating ethereal watercolor paintings.
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Veggies with Vigor
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In this activity, learners try to revive wilted celery. Learners discover that plants wilt when their cells lose water through evaporation. Use this activity to introduce capillary action.