Solar System and Sun test

One complete revolution around the sun is

• an Earth day

• an Earth year

• A season

• a decade

What keeps the moon in orbit around the Earth?

• static

• magnetism

• gravity

• energy

In the sun's core, hydrogen atoms fuse to form

• helium

• water

• nitrogen

• magma

A meteoroid passing through Earth's atmosphere becomes a(n)

• blazing comet of ice, dust, and gases

• burning rock

• asteroid when it begins to burn

• star

In what way are asteroids and comets like planets?

• They orbit the sun

• They have their own moons

• they are invisible

• They have magma

Where is the asteroid belt located?

• between Mars and Jupiter

• Between Earth and the moon

• Between Earth and the sun.

• Just outside Pluto's orbit

Which of these statements about the sun is NOT correct?

• It is a hot ball of glowing gases.

• It is closer to Earth than any other star.

• It is several billion years old.

• It is the hottest and brightest star in the universe.

About how old is the solar system?

• 450,000 years

• 4.5 billion years

• 450 million years

• 4.5 million years

What force pulled the solar system together out of a cloud of gas and dust?

• The Strong Force

• Gravity

• Electrical Force

• Magnetic Force

Which celestial body has a coma and a tail?

• planet

• asteroid

• comet

• sun