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This girl is blowing bubbles. To blow bubbles, people dip a bubble wand in soapy water. A thin layer stretches between the sides of the wand. People blow into this layer. The layer stretches out. Bubbles form. At first, some bubbles are long and thin. But eventually, bubbles become spheres.

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Surface tension allows some insects to walk on water. Water striders live near calm water such as ponds. They have tiny hairs on their legs. These hairs resist the water. The water’s surface does not break underneath the insects.

Activities

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Making Connections

Text-to-Self

Have you ever blown bubbles? How Long did the bubbles last? Did they float or fall?

Text-to-Text

Have you read other books about molecules? What did you learn?

Text-to-World

Bubbles have the shape of a sphere. What other sphere-shaped objects can you think of?

Teacher Resources

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