Search results for ""author tamra orr""

Different kinds of rocks are found on Earth. Many are found deep inside Earth. Discover why rocks are an important part of nature!

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Erosion changes Earth's natural features. It breaks down materials and can help make something new. Discover why erosion is an important part of nature!

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All living things need air to survive. Air also protects the Earth. Discover why air is an important part of nature!

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All living things need air to survive. Air also protects the Earth. Discover why air is an important part of nature!

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Erosion changes Earth's natural features. It breaks down materials and can help make something new. Discover why erosion is an important part of nature!

Read more less

Different kinds of rocks are found on Earth. Many are found deep inside Earth. Discover why rocks are an important part of nature!

Read more less