G8-WWW-English - Facts about Space

Front

What is an Earth day?

Back

An Earth day is the time it takes for the Earth to rotate once on its axis, which is approximately 24 hours.

Front

What is the correct order of celestial bodies from largest to smallest?

Back

The correct order is: universe, galaxy, sun, planet.

Front

True or False: Stars that are the same color are usually about the same size.

Back

True.

Front

Which planet has the highest temperature?

Back

Mercury has the highest temperature among the planets.

Front

What does it mean for a planet to revolve?

Back

To revolve means that a planet orbits around a star, such as the Earth revolving around the sun once per year.

Front

What is the difference between rotation and revolution?

Back

Rotation is when an object spins on its axis, while revolution is when an object orbits around another object.

Front

What is a galaxy?

Back

A galaxy is a massive system that contains stars, star clusters, dust, gas, and dark matter, bound together by gravity.

Front

What is the sun?

Back

The sun is a star at the center of our solar system, providing light and heat to the planets.

Front

What is a planet?

Back

A planet is a celestial body that orbits a star, is spherical in shape, and has cleared its orbit of other debris.

Front

What is the universe?

Back

The universe is the vast expanse that contains all of space, time, matter, and energy, including galaxies, stars, and planets.