Exploring Comets, Meteors, and Orbits

What are comets primarily made of?

• Rock and metal

• Ice and dust

• Liquid water

• Gases like hydrogen

What shape is the orbit of most comets around the Sun?

• Elliptical

• Circular

• Straight line

• Random

How long can it take for some comets to orbit the Sun?

• 1,000 years

• 100 years

• All of the above

• 76 years

What happened to the comets that approached Jupiter?

• They bounced off Jupiter's atmosphere

• They became moons

• They disintegrated into smaller chunks

• They orbited Jupiter

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

• Charged gas particles

• Water vapor

• Rock

• Sand

What is an asteroid?

• A small moon

• A type of comet

• A chunk of rock in space

• A large meteoroid

How can scientists identify a meteorite from Mars?

• By its temperature

• By the gases it contains

• By its size

• By its color

What causes a meteor to burn up when entering Earth's atmosphere?

• Solar radiation

• Magnetic fields

• Friction with the air

• Low temperatures

What protects Earth from most meteoroids?

• The Moon

• Earth's atmosphere

• Jupiter's gravity

• Earth's magnetic field

Why are craters on Earth not as visible as on the Moon?

• Earth's craters are underwater

• The Moon is closer to asteroids

• Earth's atmosphere erodes them

• Earth has no craters