Introduces robots and the science behind these amazing machines, including a historic timeline of robot development, common jobs robots perform in the workplace and at home, and robots of the future.

"It is time for T. rex and his dinosaur cousins to step aside and let other mega-predators like the terror bird and the giant ripper lizard take the spotlight! Travel back to prehistoric times and meet some of the most impressive creatures to ever roam the Earth. You'll be amazed at the size and the fierceness of these lesser-known predators, many of them ancient ancestors of animals that we still see today. tewart's cheeky, humorous voice--along...

"Animals adapt their behavior to the different phases of the moon"--

Estivation is just like hibernation - only it happens in summer instead of winter. Why do some animals settle into cool, snug spots and sink into a summertime sleep? Because it's too hot for their bodies to function, or their food is in short supply. Some estivating animals sleep groups; others rest alone. Some go on a long journey before they slumber; others hunker down right at home. From the pixie frog to the spotted turtle to the desert hedgehog,...

Describes what are meteorites, and where do they come from?

Presents an introduction to the world's turtle populations and the environmental issues that are threatening their survival, providing various examples that reveal how everyday actions can help protect endangered turtle species.

"A playful and informative nonfiction picture book about different tree holes and the amazing animals that inhabit them"--

Explains how seeds become plants, what happens to plants in the winter, and how insects help and harm them, and answers other questions about plants.

"Winds whip. Waves crash. Rain pours down. A superstorm moves across the ocean and gets closer and closer to land. Hurricane watch! Read and find out how hurricanes form, how scientists track the storms, and what you can do to keep yourself safe if one strikes. With colorful illustrations from Taia Morley and engaging text from Melissa Stewart, Hurricane Watch is a look into a powerful natural disaster."--Provided by publisher.