Comets, Asteroids, and Meteors

The video explains the differences between comets, asteroids, meteors, and meteorites. Comets are icy bodies mainly composed of frozen gas, while asteroids are rocky or metallic objects found in the asteroid belt. When a meteoroid enters Earth's atmosphere, it becomes a meteor, often seen as a shooting star. If it reaches the Earth's surface, it is called a meteorite.

What is the primary difference between a comet and an asteroid?

• Comets are made of ice, while asteroids are made of rock or metal.

• Comets are only visible during the day.

• Comets are found in the asteroid belt, while asteroids are not.

• Comets are always larger than asteroids.

What is the main component of a comet's ice?

• Frozen metal

• Frozen water

• Frozen dust

• Frozen gas

How many comets does NASA currently know about?

• 3,600

• 1,600

• 2,600

• 4,600

Where are asteroids primarily located?

• In the Kuiper Belt

• In the Oort Cloud

• In the asteroid belt

• In the Earth's atmosphere

What happens to a meteoroid when it enters the Earth's atmosphere?

• It becomes an asteroid.

• It becomes a comet.

• It becomes a meteor.

• It becomes a planet.

What is a shooting star?

• A meteor that burns up in the atmosphere

• A star moving across the sky

• An asteroid hitting the Earth's surface

• A comet passing by Earth

What is a meteorite?

• A star fragment

• A small asteroid

• A meteor that has landed on Earth

• A piece of a comet