When all the second grade students must enter the science fair, which has global warming as its theme, best friends Ivy and Bean team up to create an unusual project.

"Meet Sun: He's a star! And not just any star--he's one in a billion. He lights up our solar system and makes life possible. With characteristic humor and charm, Stacy McAnulty channels the voice of Sun in this next celestial "autobiography." Rich with kid-friendly facts and beautifully illustrated, this is an equally charming and irresistible companion to Earth! My First 4.54 Billion Years."--Amazon.com.

I'm Mad Margaret, and I'm not really mad, I'm just crazy about science! When a friend tells me he has a sneezing problem, I help him use the scientific method to solve it. I'm no Einstein, but I can tell you all about the scientific method!

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 would 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...

The magic treehouse takes Jack and Annie to a moon base in the future where they continue to search for the fourth thing they need to free their friend Morgan from the magician's spell.

Readers will investigate materials and everyday objects to learn what it is made of.

Mean Mrs. Green says that everyone has to invent something for the school science fair. But everyone would rather invent a way to get out of it! Hubie can't decide on what to invent and all of his friends have already started their projects! It comes down to a choice between cloning himself or building a laugh machine. Will his innovation be enough to earn a passing grade, or will mean Mrs. Green have the last laugh?

"In this book, readers learn about the different types of soil."--

Three children find a spaceship deep inside a cave and unwittingly revive an ancient conflict between the heroic Autobots and the evil Decepticons, each fighting for control of the universe.