Solar System Review

Front

What is Earth's orbit?

Back

A nearly circular path around the sun.

Front

Stars are huge balls of __________ gasses

Back

Hot

Front

What are the primary gasses found in stars?

Back

Hydrogen & Helium

Front

What are stars?

Back

Hot exploding balls of gas.

Front

Why can Earth support life?

Back

Because it has water, oxygen, and the right amount of sunlight.

Front

What is the average time it takes for Earth to complete one orbit around the sun?

Back

About 365 days.

Front

What force keeps the planets in orbit around the sun?

Back

Gravity.

Front

What is the main source of energy for the solar system?

Back

The Sun.

Front

What are the inner planets of the solar system?

Back

Mercury, Venus, Earth, and Mars.

Front

What are the outer planets of the solar system?

Back

Jupiter, Saturn, Uranus, and Neptune.