What's faster than a cheetah?—no animal on earth can run faster. But a peregrine falcon can swoop faster than a cheetah can run. And the falcon can't compare

"Uses children's literature as a springboard into activities that engage children in mathematical problem solving and reasoning"--from back cover.

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, plan

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 collecti

2000 Gold Seal Award, Oppenheim Toy Portfolio A Best Book for Children 2001, Science Books & Film You may be able to count all the way to one hundred, but have