Earth's Place in the Universe-Unit 3 Review

Some stars appear to be brighter in the night sky because

• They are blue, and blue light travels faster than other colors.

• They contain more nitrogen than other stars.

• They are closer to Earth than other stars.

• They have large planets that orbit them and reflect more light.

What could be a reason why some stars appear to be more dim than other stars

• stars that aren't as bright must be near the end of their life cycle

• stars that aren't as bright are traveling too fast for all the light to escape their core

• stars that aren't as bright are new stars that have just been formed

• stars that aren't as bright are farther away than many of the other stars

Samantha was observing two stars in the night sky. She knew that both stars were the same distance from Earth, but one appeared brighter than the other one. Which best explains why that might be?

• The brighter star twinkled more.

• The brighter star was larger.

• The brighter star was closer to the core of the Milky Way.

• The brighter star was becoming a black hole.

Which of the following best describes a star chart?

• a tool used to view stars up close

• a map of the night sky

• pictures of stars and planets

• a graph that shows distances to objects in the sky

Which of the following describes the sun. Select two.

• medium sized

• large sized

• red

• yellow

• blue

Which of the following best describes the sunlight during the winter?

• direct

• indirect

• tilted

• rotated

Tags

NGSS.MS-ESS1-1

Suzanne noticed that throughout the year, she can always see the constellation Ursa Major but its appearance tends to change. Which best describes why the appearance changes?

• The Earth is orbiting around the sun so our view changes throughout the year.

• The Earth is rotating on its axis so our view changes throughout the year.

• The Earth changes its gravitational pull so the constellation moves each month.

• As the moon orbits the Earth, the stars orbit the moon. This changes the view throughout the year.

Tags

NGSS.MS-ESS1-1

Which of the following best describes the sunlight during the summer?

• direct

• indirect

• tilted

• rotated

Tags

NGSS.MS-ESS1-1

Look at the diagram shown. Which of the following statements is true?

• Location A is in the winter while location B is in the fall.

• Location A is in the nighttime while location B is in the daytime.

• Location A receives fewer hours of sunlight than location B.

• Location A will rotate to location B's location in 12 hours.

Tags

NGSS.MS-ESS1-1

How many stars are in the solar system?

• 0

• 1

• 10

• Too many to count