Science G3 Chapter 16: Solar System

What is NOT the parts of the solar system?

• the Sun

• the planets

• the moon

• the constellations

• the asteroids

Why is the Sun looks larger and brighter than the stars you see at night?

• Because the Sun is made of hot, glowing gases called plasma.

• Because the Sun is the hottest stars in the space.

• Because the Sun is a lot closer to Earth than other stars.

Which is an outer planet?

• Mercury

• Venus

• Earth

• Mars

• Pluto

Which is an inner planet?

• Jupiter

• Saturn

• Mars

• Neptune

• Uranus

How are inner planets the same?

• They are the rocky planets.

• They spend the same amount of time to complete one revolution.

• They are Gas Giants.

• They have the same sizes.

Why are Mercury and Venus so hot?

• They have a lot of volcanoes.

• They are close to the Sun.

• They are made of hot glowing gas.

Why is Mars called the "red planet"?

• It has thick atmosphere that produces heat.

• It is covered by thick clouds that trap a lot of heat.

• It has a reddish-orange surface.

Which planet has the atmosphere, mild temperatures, and liquid water that support life?

• Mars

• Earth

• Venus

• Mercury

Which inner planet does not have atmosphere?

• Mars

• Earth

• Venus

• Mercury

Which inner planet is covered by thick clouds that trap a lot of heat?

• Mars

• Earth

• Venus

• Mercury