Unit 4 - Solar System

Front

What happens to planets if gravity is 'shut off'?

Back

They would travel in a straight line.

Front

What is step two of the formation of the solar system?

Back

Gravity pulled gas and dust toward the center of the disk, forming the sun.

Front

What are the inner planets classified as?

Back

Terrestrial planets (made of solid rock).

Front

What is step four of the formation of the solar system?

Back

Gravity keeps the planets in orbit around the sun.

Front

What is an asteroid?

Back

An object made of solid rock material.

Front

What is the main force that keeps planets in orbit around the sun?

Back

Gravity.

Front

What are the outer planets primarily made of?

Back

Gas and ice.

Front

What is the solar nebula?

Back

A cloud of gas and dust from which the solar system formed.

Front

What role does gravity play in the formation of planets?

Back

Gravity pulls particles together to form planets.

Front

What are the two main types of planets in our solar system?

Back

Terrestrial and gas giants.