Tamra B. Orr Livres

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

Satellites may exist out in space, but they let us study Earth from the outside looking in. From climate change to natural disasters and more, find out how scientists are using satellites to tackle some of our world's most challenging problems.

Space isn't just the final frontier - it's big business! From exploration to space holidays, learn how private businesses are transforming the future of space travel and exploration.

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!

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