Science Test Ch. 17-18

Why can't you feel Earth's movement?

• Earth moves steadily and smoothly.

• Earth moves only a few times a day.

• Earth moves at a different speed than the Sun.

• Earth moves slower than other objects in the sky.

What is the spinning of Earth on its axis called?

• orbit

• ellipse

• rotation

• revolution

Which of the following is a reason why day turns into night on Earth?

• Earth's axis is tilted.

• Earth revolves around the Sun.

• Earth rotates.

• Earth's gravity pulls on the moon.

What keeps Earth revolving around the Sun?

• the force of gravity

• the pull of the Moon

• the force of magnetism

• the pull of the outerr planets

What causes the seasons to change on Earth?

• the tilt of the Earth

• the rotation of Earth

• hotness of the Sun

• nearness to the Sun

As the Moon orbits around Earth, which side of the Moon faces Earth?

• the dark side

• the same side

• different sides

• the crater side

Which is the best description of the Sun?

• a giant-sized star nearest Earth

• a medium-sized star nearest Earth

• a giant-sized star farthest from Earth

• a medium-sized star farthest from Earth

What is a constellation?

• a pattern of stars

• a group of planets

• the remains of stars

• several small asteroids

What happens when the Moon passes through Earth's shadow?

• a new moon occurs

• a constellation forms

• a solar eclipse occurs

• a lunar eclipse occurs

What is the study of objects in space?

• astrology

• astronomy

• planetology

• constelonomy