Robert E Wells

Move to another planet? Sounds interesting! In our imaginary spaceship, let's check out the planets in our solar system. Mercury is closest, but it has no air, and it's either sizzling hot or bitterly cold. The atmosphere on Venus is poisonous, plus, human beings would cook there. Mars might work, but you'd always have to be in a protective shelter. And if you got to the outer planets, you couldn't even land as they are mostly made of gas! Our home...

Provides a simple introduction to the use of levers, pulleys, and wheels to move heavy objects.

Explore the world of the VERY small.

What would life be like with no clocks and no calendars? How would you know when to get up in the morning? Long, long ago, all people could do was watch the sun and moon and try to figure things out. Eventually, they made simple clocks like sundials.

There are trillions of stars in the universe, but we rely on our sun to provide (or contribute to) most of what we need to survive and thrive: heat, light, plants, animals, wind, and water. Complete with fun, cartoon illustrations, this book give kids plenty of information about our sun in an easy-to-read and digest format. By focusing on the needs of an elephant, Wells makes clear just how important the sun is to life on Earth.

"Have you ever wondered how the moon was formed or why it changes shape in the sky? The moon's story began 4.5 billion years ago, but it continues to affect everything we do today, from weather to timekeeping. . . . Science author Robert E. Wells explains how and why the moon matters in our lives--and for the future of space exploration"--

"Even though rain forests take up less than 10 percent of our world's land, more than half the world's plants and animals live in those rain forests, and the Amazon rain forest is our largest tropical rain forest. Its size alone makes it important, but its size is only a small part of why we need it"--

If medals were awarded to animals for living a long time, then a giant tortoise would certainly win one. Some giant tortoises have lived for more than 150 years! Still, there are things on this planet much older than giant tortoises. Some of the giant sequoia trees that grow in California could be more than 3,000 years old. But the trees aren't that old compared to the Barringer Crater in Arizona-that was made about 49,000 years ago. And it's almost...

Using fun facts and creative comparisons, science author Robert E. Wells answers some of humankind's biggest questions about the world we live in. This collection of twelve STEM picture books by award-winning author Robert E. Wells will spark kids' curiosity in our universe, from the time of dinosaurs to the present day. This collection includes Can We Share the World with Tigers?; Can You Count to a Googol?; Did a Dinosaur Drink This Water?; How...