6 Our Solar System

What are Mercury, Venus, Earth, and Mars called?

• Inner rocky planets.

• Outer gas giants.

• Planets of the Sun.

• The text doesn't say.

What are Jupiter, Saturn, Uranus, and Neptune called?

• Inner rocky planets.

• Outer gas giants.

• Planets of the Sun.

• The text doesn't say.

Why is the Sun so important?

• It provides light and makes plants grow.

• It provides energy and supports light.

• It causes the seasons and gives us fuels likes gas, oil, or coal.

• All the answers are correct.

How long does it take for Mercury to go around the Sun?

• The text doesn't say.

• 88 days.

• 365 days.

• All the options are wrong.

Why is a day in Mercury longer than in Earth?

• Because its rotation is longer.

• Because it doesn't have a moon.

• Because it doesn't have an atmosphere.

• Because it is very hot.

Which planet is almost the same size as our Earth?

• Venus

• Mars

• Mercury

• Sedna

What is a very bright object in the sky that isn't the Moon nor the Sun?

• Venus

• Asteroids

• Olympus Mons

• The text doesn't say

What's the most special thing about the Earth?

• It has 70% of water

• It has life like plants, humans, etc.

• It has a nice atmosphere that protects us from the Sun.

• All the options are correct.

The Moon's most important influence on Earth is:

• It looks so pretty at night and the phases are so cool.

• It tells you when it's night.

• It is our satellite.

• It creates the ocean tides because of its gravity pull.

Mars is red because:

• It has no water.

• It has the biggest volcano in the Solar System.

• It has seasons like us.

• It has rust-colored dust made of iron.