Unit 3 Review - The Solar System & The Universe

What kind of objects make up most of the visible matter in a galaxy?

• asteroids

• planets

• dust

• stars

The ______________ of a star depends on its temperature.

• size

• color

• brightness

• distance from Earth

The _________ of a star depends on its size and distance from Earth.

• brightness

• color

• size

• temperature

What is the main difference between the orbits of the inner and outer planets?

• The outer planets take longer to orbit the sun than the inner planets do.

• The inner planets travel a greater distance than the outer planets do.

• The outer planets rotate as they orbit the sun, and the inner planets do not.

• The inner planets have almost round orbits, and the outer planets do not.

Tags

NGSS.MS-ESS1-2

Which of the following correctly labels the diagram.

• A: planet ; B: planet ; C: moon ; D: asteroid

• A: planet ; B: planet ; C: moon ; D: comet

• A: comet ; B: star ; C: planet ; D: planet

• A: moon ; B: planet ; C: moon ; D: comet

Tags

NGSS.MS-ESS1-1

NGSS.MS-ESS1-2

Planet Z is in another solar system. It is very large, has a thick atmosphere, and has a low density. Which of these planets is most similar to Planet Z.

• Earth

• Mercury

• Mars

• Saturn

Tags

NGSS.MS-ESS1-3

Which group of planets has large solid cores?

• inner planets

• outer planets

Which is the correct definition of a galaxy?

• a star and all the planets that orbit it

• a chunk of rock or iron that orbits the sun

• a group of stars, gas, and dust held together by gravity

• a huge ball of gas that can produce its own heat and light

Tags

NGSS.MS-ESS1-2

High density is a characteristic of the ___________________.

• inner planets

• outer planets

The _________________ have many moons.

• inner planets

• outer planets