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Water Cycle in a Bag
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In this activity, learners will explore the water cycle by creating a small atmosphere.

Water Drop Exploration
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In this activity learners will explore how water moves on waxed paper. Learners will use science process skills such as using tools and making observations as they explore surface tension.

Absorb & Repel
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In this activity, learners investigate how different materials repel or absorb water. Learners use spray bottles to explore how everyday items like sponges, cardboard, feathers, etc.

Sink or Float?
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In this water activity, learners test which objects float and which sink. Learners discover that objects behave differently in water.
Float or Sink?
Source Institutions
In this water activity, learners test which objects float and which sink. Learners discover that objects behave differently in water.

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.

The Rain Man
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In this activity, learners observe the hydrologic cycle in action as water evaporates and condenses to form rain right before their eyes.

Wiggly Water
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This is a simple and fun activity for learners to explore water and colors.

Twist and Spout
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In this activity, learners make their own "tornado" using two soda bottles and water.

Rain Machine (Solar Still)
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In this activity, learners work in groups to build simple solar stills filled with salt water. After the stills are complete, learners observe what happens when they place the stills in the sun.

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.

Dye Detective
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Learners use filter paper and water to analyze six different markers. They mark the paper with ink, and dip the paper in water. The water travels up the paper and dissolved ink travels with it.

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

Aluminum Boats
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Test the buoyancy of an aluminum foil boat and an aluminum foil ball. Why does the same material in different shapes sink or float?

Exploring Size: Ball Sorter
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In this activity, learners use sieves with different-sized holes to sort balls by size.

Pop Can "Hero Engine"
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In this activity, learners build water-propelled engines from soft drink cans.

Floating and Sinking Fruits and Veggies
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In this activity, learners will explore the density of an object in water. Learners will compare what happens to fruits and vegetables in regular and salt water.

Liquid Lens
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In this activity, learners discover that they can create a lens from a water drop. Learners test their lens by looking at words or pictures.

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

Ice Cube Painting
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In this activity, learners "draw" with frozen tempera paint. The ice cubes are prepared the day before by placing watered down tempera paint and popsicle sticks in ice cube trays.