The Four Elements and the Periodic Table (Is It Science?) by Rebecca Stefoff

Is It Science?

by Rebecca Steffoff

People used to think that four elemental forces made up everything in the universe. Today scientists know that more than a hundred elements exist, and that number continues to grow. Discover how our knowledge of the physical world has changed, and how the periodic table is the key to understanding it. IS IT SCIENCE? shows the scientific method at work. Each volume in the series explores a branch of modern science or a major scientific milestone, comparing and contrasting it with an older idea that has been proved wrong or fails to meet the standards of science.

Library Binding

First published January 1, 2013