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In this environmental science activity (page 3 of the PDF), leaners will identify and explain the causes of erosion.

Learners see that a carrot slice sinks in fresh water and floats in saltwater.

Learners compare the weight of equal volumes of wax, water, and clay. Learners discover that since the wax weighs less than an equal volume of water, it is less dense than water and will float.

Learners will see that changing the shape of an object, like a clay ball, that is more dense than water, can affect whether the object will sink or float.

In this water activity, learners discover ways to move water across the water table.

In this activity (located on page 6 of the PDF), learners explore the ways people access water in their homes.

In this indoor or outdoor water activity, learners pour water from small cups to large cups and containers. In doing so, they discover water takes the shape of its container.

In this water activity, learners test which objects float and which sink. Learners discover that objects behave differently in water.

In this activity, learners explore atoms as the smallest building blocks of matter. With adult help, learners start by dividing play dough in half, over and over again.

In this water activity, learners build boats that float and sink. First, learners listen to the book, "Who Sank the Boat" and practice making predictions throughout the story.

In this activity (located on page 3 of the PDF), learners investigate the way water moves and how we can control and direct water.

In this physics activity, learners will explore buoyancy.

Build a hydrometer (measures the density of a liquid) using a pipet or eyedropper.

In this activity, learners explore how engineering has developed various means to remove impurities from water.

This activity has learners observe water and compare it to other liquids.

In this hands-on activity, learners will construct a scuba diver that can float in order to explore how sea creatures stay neutrally buoyant in the ocean and to see what kinds of forces might be influ

In this activity about water solubility and density, learners use critical thinking skills to determine why water can dissolve some things and not others.

In this botany activity, learners will create an experiment about seed germination. This activity gives students an opportunity to explore how seeds germinate and react to surrounding conditions.

In this three-part activity, learners play a game and conduct two simple experiments to explore water and surface tension. Learners will have fun discovering how water "sticks" together.

This hands-on experiment will provide learners with an understanding of the issues that surround environmental cleanup.