eBook What Is Gravity?, 1st Edition

  • Christine Honders
  • Published By:
  • ISBN-10: 1622755138
  • ISBN-13: 9781622755134
  • DDC: 531.14
  • Grade Level Range: 3rd Grade - 6th Grade
  • 32 Pages | eBook
  • Original Copyright 2015 | Published/Released September 2014
  • This publication's content originally published in print form: 2015
  • Price:  Sign in for price



This stimulating and accessible volume offers readers a fascinating view of a force known as gravity. Readers examine many scientific concepts, including Newton's laws of gravity, mass and gravitational forces, galaxies, satellites, Earth's solar system, centrifugal force, tides, and erosion. Vocabulary boxes provide additional guidance to readers, and the Compare and Contrast and Think About It sidebars give students opportunities to ponder concepts in fun and creative ways; for example, "Earth has more mass than Mars. If you stepped on a scale on Mars, would you weigh more or less than you do on Earth? Why?"

Table of Contents

Front Cover.
Title Page.
Copyright Page.
1: Universal Force.
2: Gravity Keeps Pulling.
3: Newton’s Law of Gravitation.
4: Newton’s Ideas About Mass and Gravity.
5: Newton’s Ideas About Distance and Gravity.
6: Earth’s Moon.
7: The Solar System.
8: Galaxies.
9: Human-Made Satellites.
10: Astronauts and Centrifugal Force.
11: Gravity and Tides.
12: Gravity and Erosion on Earth.
13: A Mysterious Force.
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