Astronomy Concepts and Questions

Front

What is the sun made out of?

Back

The sun is made out of a burning ball of gas.

Front

What are the closest planets to the sun?

Back

The closest planets to the sun are Mercury, Venus, and Earth.

Front

How many stars are estimated to be in the universe?

Back

There are an estimated 100-400 billion stars in the universe.

Front

How long does it take Earth to spin around the sun?

Back

It takes Earth 365 days, or 1 year, to spin around the sun.

Front

What color does the moon turn during a lunar eclipse?

Back

The moon turns red during a lunar eclipse.

Front

What is a planet?

Back

A planet is a large celestial body that orbits a star.

Front

What is the Milky Way?

Back

The Milky Way is the galaxy that contains our solar system.

Front

What is a star?

Back

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

Front

What is an asteroid?

Back

An asteroid is a small rocky body that orbits the sun.

Front

What is a comet?

Back

A comet is a small icy body that, when passing close to the sun, heats up and releases gas.