(RETEACH) Unit 5 Test: The Solar System

Front

Why is Venus considered a difficult planet for human life?

Back

Venus is close to the Sun, making it a very hot planet.

Front

What is the 'Goldilocks' zone?

Back

A zone where planets receive the right amount of heat and light for liquid water to exist.

Front

What role does the Sun's gravity play in the Solar System?

Back

It keeps the planets in orbit.

Front

What is the definition of mass?

Back

A measure of how much matter an object has.

Front

What is gravity?

Back

A force of attraction between objects that is due to their masses and the distances between them.

Front

What is the closest planet to the Sun?

Back

Mercury.

Front

What is the largest planet in our Solar System?

Back

Jupiter.

Front

What is the main component of the Sun?

Back

Hydrogen.

Front

What is a comet?

Back

A small celestial body made of ice, dust, and rocky material that orbits the Sun.

Front

What is the difference between a planet and a moon?

Back

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