California Science: Interactive Text Grade 2 (Student by McGraw-Hill

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Extra resources for California Science: Interactive Text Grade 2 (Student Edition)

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A When rocks slide down a hill, they may break and become smaller. Quick Check Write true if the sentence is true. Write false if the sentence is false. 5. Rocks can change their size. 6. Water can make rocks break. 7. When rocks slide down a hill, they get larger. 55 Chapter 3 • Lesson 2 What other ways can rocks change? Earthquakes can change rocks, too. In an earthquake, rocks rub against each other and break into smaller pieces. Plants can also change rocks. Plants can grow in soil inside the cracks of rocks.

All animals have the same life cycle. 7. Baby mammals need help to stay safe. 8. An adult panda cannot find its own food. 31 Chapter 2 • Lesson 2 How are baby animals and their parents alike and different? Baby animals can look and act like their parents. Sea lion pups have a tail, flippers, and fur like their parents. They swim and eat fish like their parents. D California sea lions 32 Animal Life Cycles Baby animals can look different from their parents in some ways. This cat gave birth to three kittens.

The black bears that live in Yosemite National Park have brown fur. A Some black bears in Alaska have light fur that helps them hide in the snow. Quick Check Write true if the sentence is true. Write false if the sentence is false. 19. Black bears live in different parts of the United States. 20. All black bears have black fur. 43 Chapter 2 • Lesson 4 How can we compare animals in the same population? Animals in the same population may look and act in different ways. For example, meerkats are animals that live in the African desert.

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