Twig - Asteroid alert - Lesson 1

Front

What is a galaxy?

Back

A large collection of stars, gas, and dust that is held together by gravity.

Front

What is an asteroid?

Back

A rocky object that revolves around the sun, but is too small to be considered a planet.

Front

What does gaseous mean?

Back

An adjective used to describe a substance that has the characteristics of a gas.

Front

What is the solar system?

Back

The group of planets and moons that orbit the Sun.

Front

What is a meteoroid?

Back

A broken piece of space rock that is still in space.

Front

What is a meteor?

Back

A meteoroid that has entered the Earth's atmosphere and is burning up.

Front

What is a meteorite?

Back

A meteoroid that has landed on the Earth's surface.

Front

What is the difference between a comet and an asteroid?

Back

A comet is made of ice and dust, while an asteroid is made of rock and metal.

Front

What is gravity?

Back

A force that attracts two bodies towards each other, keeping planets in orbit around the sun.

Front

What is the Milky Way?

Back

The galaxy that contains our solar system.