The Amazing Universe: Meteors and Comets

The video explains how Earth is constantly hit by meteoroids, which are small pieces of metal or stone from space. When these enter Earth's atmosphere, they burn up, creating meteors. Some meteoroids reach Earth's surface as meteorites, potentially causing craters. A significant meteorite impact is believed to have led to the extinction of dinosaurs. The video also covers comets, icy objects that orbit the Sun, forming a coma and tail as they near the Sun. Famous comets like Haley's and Hale-Bopp are discussed.

What is the term for the streak of light produced when a meteoroid burns up in Earth's atmosphere?

• Meteor

• Asteroid

• Comet

• Meteorite

What is the remaining matter called when a meteoroid strikes the Earth's surface?

• Meteor

• Asteroid

• Meteorite

• Comet

What event is believed to have led to the extinction of dinosaurs?

• A large comet striking Earth

• A large meteorite striking Earth

• A sudden ice age

• A massive volcanic eruption

What forms around the head of a comet as it approaches the Sun?

• A meteorite

• A crater

• A coma

• A meteor

How often is Haley's comet visible from Earth?

• Every 75 to 79 years

• Every 50 years

• Every 100 years

• Every 25 years