Exit Check 8.1 - Our Solar System

Front

What are terrestrial planets?

Back

Terrestrial planets are rocky planets that are closer to the Sun, including Mercury, Venus, Earth, and Mars.

Front

Why do scientists believe the inner solar system has terrestrial planets?

Back

Metal compounds were more plentiful closer to the star's gravity.

Front

What is a planetary nebula?

Back

A planetary nebula is a large cloud of gas and dust around a star.

Front

What caused the lighter elements to leave the terrestrial planets?

Back

Stellar wind from the Sun.

Front

What are the inner planets of the solar system known as?

Back

The Terrestrial Planets.

Front

How did the bits of dust and gas behave while forming the solar system?

Back

They ran into each other and stuck together due to gravitational and other forces.

Front

What is the main component of the solar system?

Back

The Sun, which is a star at the center of the solar system.

Front

What are gas giants?

Back

Gas giants are large planets that are primarily composed of hydrogen and helium, including Jupiter and Saturn.

Front

What role does gravity play in the formation of the solar system?

Back

Gravity pulls dust and gas together, allowing them to collide and form larger bodies.

Front

What is the significance of the solar nebula theory?

Back

It explains how the solar system formed from a rotating disk of gas and dust.