What's the BIG Idea?

Why don''t we feel the Earth move? Why does an ice cube float? Why can''t you unscramble an egg? Why can''t we live forever? These are all questions that a curious kid might ask. In What''s the BIG Idea?, renowned juvenile science educator Vicki Cobb answers these and other fascinating questions to help kids learn more about the world through the wonders of science.

A big idea is one that has no si...