Earth & Space

Front

What is the Solar System?

Back

The Solar System is a collection of celestial bodies, including the Sun, planets, moons, asteroids, comets, and meteoroids, that are bound by gravity.

Front

What is a galaxy?

Back

A galaxy is a massive system that contains gas, dust, and billions of stars, along with their solar systems.

Front

What are the main components of a comet?

Back

Comets are made of ice, rock, and dust.

Front

What is the closest star to Earth?

Back

The closest star to Earth is Proxima Centauri.

Front

What is the difference between a planet and a star?

Back

A planet orbits a star and does not produce its own light, while a star generates light and heat through nuclear fusion.

Front

What does it mean for a planet to revolve around a star?

Back

To revolve around a star means to travel in an orbit around that star due to gravitational attraction.

Front

What is the main characteristic of a planet?

Back

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

Front

What are the four terrestrial planets in our Solar System?

Back

The four terrestrial planets are Mercury, Venus, Earth, and Mars.

Front

What are gas giants?

Back

Gas giants are large planets that are primarily composed of hydrogen and helium, such as Jupiter and Saturn.

Front

What is the Milky Way?

Back

The Milky Way is the galaxy that contains our Solar System.