PES End of unit practice

What is the closest star to Earth?

• Groombridge

• Alpha Centauri

• Siruis

• Sun

What is the only star in our solar system?

• sun

• Proxima Centauri

• Sirus

• Alpha Centauri

Why does the sun look bigger and brighter than all the other stars in the sky?

• The sun is closer to Earth than other stars.

• The sun is bigger than other stars.

• The sun is smaller than other stars.

• The sun is the farthest star from Earth.

How long does it take for Earth to spin around one time?

• one hour

• one day

• one month

• one year

How long does it take for Earth to orbit the sun one time?

• one hour

• one day

• one month

• one year

The sun sets because ______ moves.

• the Sun

• the Earth

• the constellation

• nothing

Scientists could see could see a constellation on November 2017. When would you expect to see this constellation again?

• Every day of the year

• March 2018

• November 2018

• May 2018

why does the sky look different in each nighttime section of the artifact?

• The Earth spins on its axis, so we see different constellations every day.

• The Earth orbits around the Sun, so we see different constellations every year.

• the Earth sometimes spins and other times goes around the sun.

• The Earth does not move, but the constellations do move.

Why can't you see other stars in the sky during the daytime?

a. The Sun is closest star to Earth.

b. The sun looks bigger and brighter because it is much closer than other stars.

c. The sun's looks so bright. We face the sun in the daytime.

d. Stars are very far away from Earth in every direction.

e. The Sun's light blocks out or overwhelms light from other stars.

• a

• A and B

• A, B and C

• All the answers are correct

• None of the answers are correct

Why don't I see the sun at nighttime?

A. The Earth spins causes either stars or sun to be visible.

B. The Sun rotates.

C. The Sun moves.

D. In daytime half of the Earth faces the sun.

E. In nighttime is when half of Earth faces away from the sun and the stars are seen.

F. The Sun rotates and orbits and the sun is shining on the other side of the Earth.

• A, B, D, E, F

• B, C

• A

• D