Unit 4 Review!!

Front

What is made of ice and dust?

Back

Comet

Front

Which of these characteristics distinguishes the outer planets from the inner planets?

Back

The outer planets have many moons.

Front

What is the solvent in a mixture of ground coffee, sugar, and milk added to hot water?

Back

Water only

Front

True or False: Mercury, Jupiter, Venus, Mars are inner planets.

Back

False

Front

Which planet rotates to give day/night every 24 hours?

Back

Earth

Front

What are the inner planets?

Back

Mercury, Venus, Earth, and Mars.

Front

What are the outer planets?

Back

Jupiter, Saturn, Uranus, and Neptune.

Front

What is a comet?

Back

A celestial object made of ice and dust that, when close to the sun, displays a visible atmosphere or coma and sometimes a tail.

Front

What distinguishes gas giants from terrestrial planets?

Back

Gas giants are composed mostly of hydrogen and helium, while terrestrial planets have rocky surfaces.

Front

What is the main component of the Earth's atmosphere?

Back

Nitrogen (about 78%) and Oxygen (about 21%).