Structure of the Universe Review

Which structure includes all matter and space that exists?

• Planetary System

• Galaxy

• Universe

• Planet

Earth and our solar system is found in what galaxy?

• The Chocolate Milk Galaxy

• The P42 Wallaby Way Galaxy

• The Ultimate Galaxy

• The Milky Way Galaxy

What is a light year?

• a measurement of distance

• a measurement of time

• a measurement of weight

• a measurement of depth

For a celestial object to be considered a planet, it must

• be spherical, because of its gravity

• orbit a star

• have a clear path (orbit) around the star is revolves

• all of the above

Which of these is NOT true about a moon?

• they are usually solid and rocky

• it is a natural object in space

• all planets have at least one moon

• moons are usually spherical but can be egg-shaped

Which of the following objects is the most massive in our solar system?

• Jupiter

• Mars

• the Sun

• Earth

What is the difference between a planet and a moon?

• A planet is always round, a moon is never round

• A planet orbits a star, a moon orbits a planet

• A planet can support life, a moon cannot

• A planet is solid, a moon is liquid

What is a difference between the inner four planets and the outer four planets?

• The four inner planets are bigger, the four outer planets are smaller

• The four inner planets have moons, the four outer planets do not have moons

• The four inner planets are rocky, the four outer planets are made of Gas (they are gassy, lol)

• The four inner planets can support living things, the four outer planets cannot support living things

Earth is one of .... planets that orbit the sun, which is a star.

• five

• eight

• seven

• ten

A ..... is a large celestial body that is composed of gas and emits light.

• planet

• galaxy

• star

• moon