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Water: A Basic Ingredient
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In this activity, learners explore healthy choices related to the liquids they drink. The importance of water and milk as essential nutrients for a healthy body is the focus of the experience.

TerrAqua Investigation Column: What is the Land-Water Connection?
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In this investigation, learners plant seeds in a 2-liter bottle filled with soil that is connected to a water source below. Over the next few weeks, learners observe how the plants grow.

Oil and Soap
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Learners investigate the properties of the liquids in two bottles. One contains layers of oil and water, and one contains oil, water, and soap.

Water Cycle in a Bag
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In this activity, learners create a biosphere in a baggie.

Planaria Fishing
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In this activity, learners capture and observe planaria, which are worms that eat tiny pond critters.

Waterscope Wonders
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In this activity, learners will create a magnifying glass called a waterscope, using water and household items, to examine various objects.

Frog Eggs
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In this activity, learners compare frog eggs to chicken eggs to better understand why frog eggs need water. Learners compare a boiled chicken egg to "frog eggs" represented by boiled tapioca.

Do Plants Need Sunlight?
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In this activity, learners find out what happens when they cover leaves with pieces of black construction paper. This activity shows learners that plants need sunlight to survive.

Dinosaur Homes
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In this activity about dinosaurs and survival, learners use scrap materials to create a miniature dinosaur habitat that includes a food source, water source, and shelter.

Make a Friend from Soil and Seeds
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Learners assemble a figure from a nylon stocking or sock stuffed with soil and seeds. The ends of the nylons inside the jar absorb water, which feeds the grass seeds.

How Animals Stay Warm
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In this quick activity, learners explore how blubber protects animals from the cold by making a "blubber mitt." Using cooking shortening, two zip-top sandwich bags, and duct tape, learners simulate bl

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.
River Catcher
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In this activity (located at the top of the page), learners make an easy river strainer and see what they can catch.

Good Vibrations
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This lesson (on pages 15-24 of PDF) explores how sound is caused by vibrating objects. It explains that we hear by feeling vibrations passing through the air.

Caring Together: Activity Stations
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In this Bob the Builder(TM)-themed activity, learners explore the 3Rs (Reduce, Reuse, Recycle) by rotating through several activity stations.

Design a Park
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In this activity, learners are invited to imagine the park of their dreams!