Here is an extraordinary collection of thirty outer space experiments that teach children ages 6-11 about the Earth's orbit and rotation, stars, planets, the solar system, the moon, gravity, rockets, and much more! spiral

-- Chemistry experiments that can be done at home or in the classroom using easily obtained and inexpensive materials. Now available in paperback!-- Includes step-by-step instructions for thirty experiments that demonstrate the scientific method.

A dazzling tour of some of the tallest buildings, longest bridges, and highest dams throughout the world, this magnificent volume explores canals and tunnels, castles and cathedrals, temples and sports arenas from ancient times to the present.hbk