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This warm weather activity introduces learners to the impact trees have on blocking the sun's heat and reducing temperature on the Earth's surface.

This activity (located on page 3 of the PDF under GPS: Glaciers Activity) is a full inquiry investigation into the forces of gravity and air pressure.

In this activity, learners explore and compare the buoyant properties of materials found in nature and in human-made materials.

In this activity, learners observe the effect of transpiration as water is moved from the ground to the atmosphere.