Asteroids and Comets -1

What are asteroids?

• Lumps of ice and dust

• Rocky objects with round or irregular shapes

• Balls of gas

• Small stars

How do asteroids move around the Sun?

• In straight lines

• In their own orbits

• Randomly

• In zigzag patterns

What are comets made of?

• Metal and rock

• Ice and dust

• Fire and smoke

• Water and air

What happens to comets when they get close to the Sun?

• They freeze

• They disappear

• They evaporate

• They explode

What forms the long tails of comets?

• Water and air

• Jets of gas and dust

• Fire and smoke

• Metal and rock

How long can the tails of comets be?

• Very short

• Medium length

• Very long

• Invisible

How big can asteroids be?

• Up to several hundred kilometers across

• Only a few meters

• As big as the Earth

• As small as a grain of sand

What do asteroids and small planets have in common?

• They are both made of ice

• They both have long tails

• They both move around the Sun in their own orbits

• They both shine brightly