It's a gravity powered maze game that comes with 60 challenges of increasing difficulty, from beginner to expert. Playing through the increasingly difficult brain teaser style challenges will sharpen your mind. Recommended Ages 8+
Features easy and fun science experiments with gravity and motion using household items. Each activity includes easy instructions with how-to photos, and short science explanations.
"A graphic nonfiction volume that introduces the force of gravity and its effects on Earth and the universe. Features include several photographic pages, a glossary, additional resource list, and an index"-- Provided by publisher.
What happens to a ball when it rolls off a table? Why doesn't the ball keep rolling straight up or fly up off the table? The answer is gravity. Adler explains how this invisible force operates in the real world. -- adapted from jacket