What Are Planets?

What Are Planets? book cover — WHAT ARE PLANETS

What Are Planets? — page 1 — What Is a Planet Not all scientists agree on the definition of a planet but many follow three rules

What Are Planets? — page 2 — Rule 1 A planet is an object in space that orbits or travels around a star Rule 2 A planet must be nearly round Rule 3 A planet cannot share its orbit with a smaller object

1

PAGE 1 OF 21

›

The only kids' eBook subscription service that offers thousands of high-quality books from well known publishers like HarperCollins, National Geographic and others.

JavaScript Required

Whoops! We're sorry but Epic doesn't work properly without JavaScript enabled. Check your web browser's settings to make sure it's enabled.