Solar System Vocabulary

The length of a straight line through an object.

the path of an object revolving around another object

a meteroid that enters Earth's atmosphere

a meteoroid that actually lands on Earth

Sources of energy such as coal, oil, and natural gas made from dead plants and animals

a large object that moves around the sun

the force of attraction that tends to draw objects together.

a layer of gases surrounding a planet, star, or moon

A comet, asteroid, or dust particle floating in space.

the move around another object