Profiles of some of history's greatest scientists-- and fun experiments that demonstrate their theories! Janice VanCleave's Scientists Through the Ages profiles
How much would you weigh on Mars? What can exploding balloons tell us about weather? Why do heavy ships stay afloat on water? How can you lift an elephant with
How much would you weigh on Mars? What can exploding balloons tell us about weather? Why do heavy ships stay afloat on water? How can you lift an elephant with
For use in schools and libraries only. A jumbo collection of science fun for young learners including experiments with magnets, exploring the world of insects,
There's plenty for you to choose from in this collection of forty terrific science project ideas from real kids, chosen by well-known children's science writer