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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.
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.
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).