Gravity: Mind-boggling experiments you can turn into Science Fair Projects!

How much do you know about gravity? How does it affect human height or the shape of soap bubbles? Does the mass of falling rain affect the energy it produces as it falls? Can a straw work in a sealed bottle? What creates the feeling of weightlessness? How are satellites launced into orbit around Earth? Janice VanCleave's Gravity includes 20 simple and fun experiments that allow you to discover the answers to these and other fascinating questions about gravity, plus dozens of additional suggestions for developing your own science fair projects. And all the experiments use inexpensive household materials. This is a great introduction to physics! Paperback, 87 pages