Science, Unit 6, Lessons 1-2 Review

A change in the appearance of the moon's shape is known as a(n) --

• axis

• constellation

• moon phase

• orbit

When things turn like a top, they --

• axis

• orbit

• rotate

• revolve

Earth turns around an imaginary line called a(n) --

• axis

• orbit

• planet

• constellation

The path that one object takes around another object in space is its --

• axis

• planet

• rotation

• orbit

A group of stars that seems to form a pattern in the night sky is a(n) --

• axis

• constellation

• orbit

• solar system

How long does it take for Earth to complete a full rotation?

• 1 day

• 1 week

• 1 month

• 1 year

A 4th grader in the U.S. does an experiment in her science class. At the same time, a 4th grader in India is asleep. Why is it daytime in the U.S. while it is nighttime in China?

• Earth's rotation

• Earth's revolution

• the moon's revolution

• Earth's path as it orbits the sun

In Indiana, an August day is usually hotter than a January day. Why?

• The sun gives off more heat in the summer.

• Earth is closer to the sun in summer and farther away in winter.

• Earth's rotation slows down in summer and speeds up in winter.

• Earth's North Pole tilts toward the sun in summer and away from it in winter.

The same side of the moon always faces Earth. Why?

• Half the moon faces the sun.

• The moon does not rotate like Earth does.

• The moon's revolution and rotation are about the same length.

• Earth blocks part of the sunlight that shines on the moon's surface.

Earth rotates on its axis once every 24 hours. What is the result of Earth's rotation?

• the seasons

• night and day

• the moon's phases

• the length of the year