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Changing the Density of a Liquid: Adding Salt
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Learners see that a carrot slice sinks in fresh water and floats in saltwater.
Exploring Products: Nano Sand
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In this activity, learners explore how water behaves differently when it comes in contact with "nano sand" and regular sand.
Comparing the Density of an Object to the Density of Water
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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.
Changing the Density of an Object: Changing Shape
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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.
From Here to There
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In this water activity, learners discover ways to move water across the water table.
Big and Little Cups
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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.
Cool Trees
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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.
Float or Sink?
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In this water activity, learners test which objects float and which sink. Learners discover that objects behave differently in water.
Sink or Float
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In this activity, learners explore and compare the buoyant properties of materials found in nature and in human-made materials.
Miscibility
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Learners observe a bottle containing water and oil. They are invited to pick up the bottle and mix the contents together.
Outrageous Ooze: Is It a Liquid or a Solid?
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This activity provides instructions for using cornstarch and water to make an ooze which has the properties of both a solid and liquid.
Atoms and Matter (K-2)
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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.
Boats Afloat
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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.
School of Fish
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In this activity, learners will make fish cutouts that propel through the water with the help of surface tension.
Water Exploration Station
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In this activity (located on page 3 of the PDF), learners investigate the way water moves and how we can control and direct water.
Float Your Boat
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In this physics activity, learners will explore buoyancy.
Eyedropper Hydrometer: Buoy your understanding of density
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Build a hydrometer (measures the density of a liquid) using a pipet or eyedropper.
Balloon in a Flask
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Learners observe a flask with a balloon attached over the mouth and inverted inside the flask.
Filtration Investigation
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In this activity, learners explore how engineering has developed various means to remove impurities from water.
Let's Look at Water & the Scientific Method
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This activity has learners observe water and compare it to other liquids.