Polaris is another name for the:

• North Pole.

• North Star.

• South Pole.

• South Star.

Which of the following statements does NOT describe the behavior of a celestial object?

• A comet travels through space.

• The North Star never appears to move.

• The sun appears to move across the sky every day.

• A communications satellite revolves around Earth.

What is Earth's axis?

• the direction in which Earth spins

• a metal pole that protrudes from the center of Earth

• the imaginary point or line that Earth rotates around

• the point at which Earth completes one full rotation

Earth's rotation is a process that causes

• the sun to appear to rise and set.

• stars to appear to move across the sky.

• celestial objects in space appear to move daily in circular patterns.

• all of the above.

Our ability to observe the sun travel across the sky because we are standing on a moving object is an example of

• star trails.

• seasons.

• the sun’s path.

• a cause and effect relationship.

Tags

NGSS.MS-ESS1-1

The overall pattern of the sun rising toward the east and setting toward the west

• never changes.

• changes in the summer and winter months.

• changes depending on your location.

• changes depending on the direction of the sun's rotation.

Tags

NGSS.MS-ESS1-1

Earth rotates on its axis approximately once every

• 365 days.

• 30 days.

• 24 hours.

• 2 weeks.

Tags

NGSS.MS-ESS2-6

Earth completes one full revolution over the course of one

• year.

• day.

• month.

• decade.

Tags

NGSS.MS-ESS1-1

Why are seasonal stars only visible during certain times of the year?

• Their visibility depends on their own orbit around the sun.

• Their visibility depends on Earth’s position relative to the sun.

• Their visibility depends on their position relative to each other.

• Their visibility depends on their position relative to Polaris.

Tags

NGSS.MS-ESS1-1

Which of these most closely describes the shape of an ellipse?

• a thin oval

• a straight line

• a short spiral

• a thin crescent