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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.
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.
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.
Balloon in a Flask
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Learners observe a flask with a balloon attached over the mouth and inverted inside the flask.
Buoyancy Bulls-Eye
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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
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.
Build An Aqueduct
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In this activity, learners use the design thinking process to design and build their own aqueduct, or water bridge.
Water Motor
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In this physics activity (page 10 of the PDF), learners will explore how energy from moving water can be used.