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Grade 7

1092 records found. Displaying 61 - 70.

Artificial Limbs

Everyday doctors perform artificial limb replacements that were unheard of only a few years ago. They continue to make advances that improve people's lives. Using artificial limbs as an… More →

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Asian Carp

Asian carp have big appetites and can leap out of the water when startled. They were brought to the United States from their native Asian habitats to control algae growth on fish farms. Find… More →

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