Space Unit Review

Front

What is gravity?

Back

Gravity is a force that attracts two bodies with mass towards each other. Every object with mass has gravity.

Front

What are the three common characteristics of all planets?

Back

1. They orbit the sun. 2. They are massive enough that their gravity controls all objects in the area. 3. They are spherical.

Front

What makes Earth unique among the planets in our solar system?

Back

Earth is unique because it has liquid water, which is essential for life.

Front

What is a characteristic of the inner planets?

Back

Inner planets are made up mostly of rock.

Front

What shape is a comet's orbit?

Back

A comet's orbit is elliptical.

Front

What is the difference between inner and outer planets?

Back

Inner planets are rocky and smaller, while outer planets are gas giants and larger.

Front

What is the main source of light and heat for the planets in our solar system?

Back

The Sun is the main source of light and heat for the planets.

Front

What is an asteroid?

Back

An asteroid is a small rocky body that orbits the Sun, primarily found in the asteroid belt between Mars and Jupiter.

Front

What is a moon?

Back

A moon is a natural satellite that orbits a planet.

Front

What is the significance of the Earth's atmosphere?

Back

The Earth's atmosphere protects life by blocking harmful solar radiation and maintaining a stable climate.