8th Grade 3rd Grading Exam Review

What do all the planets in our solar system have in common?

• they all have liquid water

• they all have elliptical orbits

• they all have dense atmospheres

• they all have moons

Which planet would most likely have a longer year - the one closer to the sun or the one farther from the sun?

• the closer to the sun, the longer the year

• the farther away, the longer the year

• neither, it depends on the rotation

• the distance from the sun would not matter

Which would more than likely have more moons?

• a very small planet

• a very massive planet

• a planet very far from the star it orbits

• a planet very close to the star it orbits

True or False: As a general rule, the farther from the sun, the longer it will take to revolve.

• True

• False

Why is Mercury not the hottest planet when it is the one closest to the sun?

• It has a large ozone layer.

• It has no liquid water.

• It has hardly any atmosphere to insulate it.

• It has a very heavy atmosphere.

What most directly causes the tides?

• the sun's gravitational pull

• the Earth's tilted axis

• the speed of the Earth's revolution

• the moon's gravitational pull

How are the Moon, Sun, and Earth arranged during a solar eclipse?

• Sun, Earth, Moon

• Moon, Sun, Earth

• Earth, Moon, Sun

• Earth, Sun, Moon

How are the Moon, Sun, and Earth arranged during a solar eclipse?

• Sun, Earth, Moon

• Moon, Sun, Earth

• Earth, Moon, Sun

• Earth, Sun, Moon

How are the Moon, Sun, and Earth arranged during a solar eclipse?

• Sun, Earth, Moon

• Moon, Sun, Earth

• Earth, Moon, Sun

• Earth, Sun, Moon

What model of the Solar System shows the Earth in the center?

• heliocentric

• geocentric