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What Molecules Make the Holes in Bread?
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In this activity, learners will discover why there are holes in bread.
Balloon in a Flask
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Learners observe a flask with a balloon attached over the mouth and inverted inside the flask.
Stick to It: Adhesion II
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Water sticks to all kinds of things in nature — flowers, leaves, spider webs - and doesn't stick to others, such as a duck's back.