Study Guide

Write T if the sentence is true. If the sentence is false, write the correction for the underlined words. 1. The moon is the earth's manmade satellite.

• True

• False

• Natural

Write T if the sentence is true. If the sentence is false, write the correction for the underlined words. 2. The moon is a sphere.

• True

• False

• Circle

Write T if the sentence is true. If the sentence is false, write the correction for the underlined words. 3. The moon is larger than the earth.

• True

• False

• Smaller

• Larger

Write T if the sentence is true. If the sentence is false, write the correction for the underlined words. 4. The moon's gravity is about one-sixth of the earth's gravity.

• True

• False

• Force

Write T if the sentence is true. If the sentence is false, write the correction for the underlined words. 5. The diameter of the moon is about one-fourth as long as the earth's.

• True

• False

• 1/2

Any object that travels around another object in space is called a ______.

• satellite

• planet

• asteroid

• comet

Fill in the blanks. 7. Because the moon does not have an atmosphere like the earth's, the moon has extreme ______ changes, no weather, and no ______.

• temperature, sound

• light, gravity

• pressure, air

• climate, life

A measurement of the amount of matter an object has is called its ______.

• mass

• volume

• density

• weight

A change in gravity does not affect an object's ______ but does affect the object's ______.

• mass, weight

• weight, mass

• volume, density

• density, volume

Some of the moon's features are maria, ______, rilles, and craters.

• mountains

• valleys

• oceans

• plains