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Chapter 2 - Plants Grow and Change

UNIT A • Plants

Chapter 2 • Plants Grow and Change?

How do plants change?

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Activity

Nature Explorations

No matter what the weather or season, you can explore nature with these 11 challenges. See just how good your observation skills are by comparing butterflies, leaves, reptiles, fish, and more. Then record your own observations in a field journal.

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Article

Global Grocery

Have you ever wondered what gives chocolate its flavor? Or where olive oil comes from? You might be surprised to learn just how far some of the items in your shopping bag have traveled.

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Diagram

Leaf Shape

More than likely with a good guess you could detect a heart-shaped leaf from one that's oval or narrow. But do you know how to recognize a leaf that has a lobed or divided shape? Learn how. 

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Diagram

Parts of a Flower

Go beyond petals and leaves! Learn how to identify a flower's stamen, anther, filament, stigma, and more with this illustrated look at the parts of a flower. 

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Young Naturalist Awards Essay

Saguaro Cactus: From Life to Death

2003 Young Naturalist Award-winning essay - Journey to the Sonoran Desert in southern Arizona with this seventh-grader for an up-close and personal look at the saguaro cactus, which can live about 200 years and grow to be almost 80 feet tall.

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Science Bulletin

Surveying Vietnam

In recent years, scientists from around the world have turned to Vietnam in their search for new plant and animal species. Vietnam harbors an astonishing range of habitats, from rain forests and dry forests to mangroves and coral reefs. Scientific expeditions and surveys have discovered an amazing range of biodiversity. But even as this biodiversity is being revealed, it is coming under threat from development and human activity. Scientists now are racing to accomplish their studies in an effort to keep Vietnam's biological wealth from disappearing entirely.

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Online Resource

Plant Morphology

From leaf margin and arrangement to the parts of a flower and a corn seedling, take an illustrated look at plant morphology with this collection of guides.

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