Free Printable Gr 3 Comets and Asteroids

Worksheets

Gr 3 Comets and Asteroids

Total questions: 10

Worksheet time: 7mins

Name

Class

Date

^{Objects made of ice, gas and dust and orbit our sun are called:}

Asteroids

Comets

Meteroids

Meteors

Huge chunks of rock and metal (some measuring miles wide) are believed to be left-over pieces of planets and moons called:

Comets

Meteors

Asteroids

Meteroids

These objects that orbit the sun are nicknamed, "dirty snowballs."

Comets

Asteroids

Meteors

Meteroids

Where are asteroids found?

Between Earth and Venus

Between Jupiter and Saturn

Between Saturn and Uranus

Between Mars and Jupiter

What is the very core of a comet called?

Coma

Comet

Nucleus

Hydrogen Cloud

Where do most comets come from?

In the Kuiper Belt & Oort Cloud beyond Neptune's orbit

In the Asteroid Belt between Mars and Jupiter

Near the Sun

Earth's atmosphere

What's the difference between comets and asteroids?

Asteroids are made of metal and rock, while Comets are ice and rock

Asteroids are made of ice and rock, while Comets are made of metals and rock

There is no difference

Asteroids are made of stardust, while Comets are made up of water

A comet forms a tail when

It is deep in outer space and begins to melt

It gets close to the sun and begins to melt

Select the 3 materials a comet is composed (made) of

Dust

Metal

Ice

Small rocky particles

10.

This space rock is made of rocks and metals and had caused extinction of dinosaurs

pebbles

comets

asteroid

potato

Reset

Gr 3 Comets and Asteroids

Total questions: 10

Worksheet time: 7mins

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