Wonders 3.3 "Earth"

Front

What is the Earth?

Back

The Earth is the only planet in our Solar System that can support life.

Front

How long does it take the Earth to orbit the Sun?

Back

It takes one year for the Earth to orbit the Sun.

Front

What are Jupiter, Saturn, Uranus, and Neptune made of?

Back

They are all made of gas.

Front

What is true about the moon's atmosphere?

Back

The moon has no atmosphere, so the temperature is either really hot or really cold.

Front

Why does the moon seem to change shape?

Back

We only see the parts of the moon that are lit by the Sun.

Front

What is a planet?

Back

A planet is a large celestial body that orbits a star and can be made of rock or gas.

Front

What is the Solar System?

Back

The Solar System is a collection of planets, moons, asteroids, and comets that orbit the Sun.

Front

What is a year?

Back

A year is the time it takes for the Earth to complete one orbit around the Sun.

Front

What is a gas giant?

Back

A gas giant is a large planet that is mostly made of gases, like Jupiter and Saturn.

Front

What is the difference between a planet and a moon?

Back

A planet orbits a star, while a moon orbits a planet.