Solar System/Third Grade

What is our solar system made up of?

• The sun and moon

• The sun, moon and Earth

• The solar system is the Sun, and the group of planets and bodies that orbit it.

• The sun, moon and four planets

What is at the center of the Solar System?

• The Sun is at the center of our solar system.

• The Earth is at the center of our solar system.

• The planet Mars is at the center of the solar system.

• The moon is at the center of the solar system.

What is a star?

• A star is yellow

• A star is a body of liquid.

• A star is a white body made up of liquids.

• A star is a body of hot gases that makes its own light and heat.

True or False. Our Sun is a star.

• False

• True

What’s in the inner solar system?

• There are eight planets in the inner solar system.

• There are four planets in the inner solar system.

• There are six planets in the inner solar system.

• There are two planets in the inner solar system.

Which planet is closest to the sun?

• Earth

• Mercury

• Jupiter

• Saturn

Which planet is the hottest?

• Earth

• Mars

• Jupiter

• Venus

Why is the Earth called "the blue planet"

• Because it is blue.

• Because it is big.

• Because there is so much wate on it.

• Because it is mostly grass.

Why is Mars is called the “red planet”.

• Because it has reddish rocks.

• Because it has red spots.

• Because it has red stripes.

• Because it has red clouds.

Why are the planets in the outer solar system colder than the ones in the inner solar system?

• Because they are bigger.

• Because they weigh more.

• Because they’re farther from the Sun.

• Because they are smaller.