SR Nebular Theory

Front

What are the inner planets?

Back

Mercury, Venus, Earth, and Mars.

Front

What happens to planetesimals during formation?

Back

They keep colliding and sticking together.

Front

What are Mercury, Venus, Earth, and Mars classified as?

Back

Terrestrial or Rocky planets.

Front

What are the outer planets?

Back

Jupiter, Saturn, Uranus, and Neptune.

Front

How do stars form?

Back

When a nebula collapses and nuclear fusion occurs.

Front

What is the main component of a nebula?

Back

Gas and dust.

Front

What is the process of nuclear fusion?

Back

The process where hydrogen atoms combine to form helium, releasing energy.

Front

What is a planetesimal?

Back

A small body from which a planet originated in the early stages of formation.

Front

What is the difference between terrestrial and gas giant planets?

Back

Terrestrial planets are rocky and solid, while gas giants are mostly composed of gases.

Front

What role do gravity and pressure play in star formation?

Back

They cause the nebula to collapse and initiate nuclear fusion.