Chapter 20 Study Guide

Front

Which planet once had water on its surface?

Back

Mars

Front

How many more years can the sun's fuel last?

Back

5 billion years

Front

What is the source of the sun's energy?

Back

Nuclear fusion

Front

What is an especially interesting feature of Jupiter’s atmosphere?

Back

The Great Red Spot, a giant storm

Front

Why can't the atmosphere of the gas giants escape?

Back

Gravitational pull

Front

What is the main component of Mars' atmosphere?

Back

Carbon dioxide

Front

What is the largest planet in our solar system?

Back

Jupiter

Front

What phenomenon causes the sun to shine?

Back

Nuclear fusion in its core

Front

What is the term for the visible surface of the sun?

Back

Photosphere

Front

What is the primary gas found in the sun?

Back

Hydrogen