Unit 23: Section 1 Review

Front

What does a mirror do?

Back

A mirror reflects light.

Front

What happens if the sun is farther from Earth?

Back

Earth would receive less light and heat.

Front

Does the sun give off its own light?

Back

Yes, the sun gives off its own light.

Front

Are all stars the same size and type?

Back

No, each star is different in size and type.

Front

Which star is closest to Earth?

Back

The Sun is the closest star to Earth.

Front

What is the main source of light for Earth?

Back

The Sun is the main source of light for Earth.

Front

What would happen to Earth if the Sun disappeared?

Back

Earth would be dark and cold without the Sun.

Front

What is the role of the Sun in our solar system?

Back

The Sun provides light and heat, and its gravity keeps the planets in orbit.

Front

What is a star?

Back

A star is a massive, luminous sphere of plasma held together by gravity.

Front

What is the closest star to Earth after the Sun?

Back

Proxima Centauri is the closest star to Earth after the Sun.