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Engage
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Have students brainstorm their prior knowledge about ice onto an anchor chart, in whatever form it may take, onto a
KWL chart
.
To reinforce this knowledge read
From Water to Ice
together, which describes the process of making ice using simple text and pictures.
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Explore
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Have students drop ice cubes into a glass of water and discuss in a group what happens.
Use this experience to springboard into the investigative question of the book
Why Do Ice Cubes Float?
Read this book aloud with students, adding new knowledge to their
KWL chart
as you go.
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Explain
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Have students read
Water and Ice
independently. Ask them to use the melting/freezing cycle on page 7 to explain where water will be more dense and less dense.
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Elaborate
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Have students create models of two or more water molecules using colored marshmallows and toothpicks. Connect them with longer, differently colored toothpicks to demonstrate the bonds between molecules. Have students physically manipulate the models to show how water becomes less dense when frozen (by making the molecule bonds longer, and therefore pushing the molecules farther apart).
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Evaluate
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Have students take the LevelUp
Why Do Ice Cubes Float?
quiz to determine their mastery of the book concepts.
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