A Planet Called Earth - download pdf or read online

By George Gamow

Hardback, ex-library, with traditional stamps and markings, in solid all around .

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Think of four ways that plants are like their parent plants. 2. What changes the way plants grow? 3. Write about the way a plant grows from a seed. How do the roots grow? Why? Make a crayon rubbing of two different leaves. How are they alike? How are they different? com 49 EVALUATE People who live in forests all over the world know about helpful plants. They use plants for food and for building homes. They also use plants to make medicine. One helpful plant is the rosy periwinkle. It first grew in Madagascar, and later people spread it around the world.

25 Lesson 1 What Living Things Need Farm in Pomfret, Vermont What things in this picture are alive? How can you tell? 26 ENGAGE LS-1. Explain that animals . . and . . plants need air, water, nutrients, . . living space, and light to survive. LS-5. Explain that food is a basic need of plants and animals . . What do leaves need? You need What to Do Put the plants in a sunny place. Choose one plant and cover its leaves with foil. Keep the soil moist in both pots. two potted plants Predict. What will happen to each plant in a week?

Draw what you think is inside the seed. wet lima bean Use your fingernail to open the wet seed. Use your hand lens to observe the wet seed. Draw what you see. Communicate. Compare your two drawings. What was different? What was the same? hand lens Step Explore More Observe. Look at other wet and dry seeds to see how they compare. SI-7. , magnifiers, non-breakable thermometers, timers, rulers, balances and calculators and other appropriate tools). 35 EXPLORE Where do seeds come from? Vocabulary flower seed pollen life cycle seedling Explore plant life cycles with the Treasure Hunters.

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A Planet Called Earth by George Gamow

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