Chapter 13: Earth, Moon, & Sun

Question 1

sun

Answer 1

The star at the center of our solar system.

Question 2

rotate

Answer 2

To spin on an axis

Question 3

axis

Answer 3

An imaginary line that passes through Earth’s center and its North and South Poles

Question 4

revolve

Answer 4

To travel in a closed path around another object

Question 5

orbit

Answer 5

The path one body takes in space as it revolves around another body

Question 6

equator

Answer 6

An imaginary line around Earth equally distant from the North and South Poles

Question 7

moon

Answer 7

Any natural body that revolves around a planet.

Question 8

crater

Answer 8

A low, bowl-shaped area on the surface of a planet or moon

Question 9

moon phase

Answer 9

One of the shapes the moon seems to have as it orbits Earth

Question 10

eclipse

Answer 10

An event that occurs when one object in space passes through the shadow of another object in space

Question 11

refraction

Answer 11

The bending of light as it moves from one material to another

Question 12

star

Answer 12

A huge ball of very hot gases in space

Question 13

solar system

Answer 13

A star and all the planets and other objects that revolve around it

Question 14

constellation

Answer 14

A pattern of stars named after a mythological or religious figure, an object, or an animal

Question 15

planet

Answer 15

A body that revolves around a star

Question 16

universe

Answer 16

Everything that exists, including such things as stars, planets, gas, dust, and energy

Question 17

galaxy

Answer 17

A grouping of gas, dust, and many stars, plus any objects that orbit those stars