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Y8 Stars and Galaxy

Total questions: 17

Worksheet time: 9mins

Name
Class
Date
1.

There are more stars in the universe than grains of sand on earth.

a)

True

b)

False

2.

What is the closest galaxy to the Milky Way?

a)

Proxima Centauri

b)

Spiral

c)

Andromeda

d)

Elliptical

3.

A light year is the _ _ _ _ _ _ _ _ travelled by _ _ _ _ _ in one Earth _ _ _ _.

(a)  

4.

A light year is a measure of time.

a)

True

b)

False

5.

The main gases that burn within the sun are

a)

Oxygen and Nitrogen

b)

Hydrogen and Oxygen

c)

Neon and Sulfur

d)

Hydrogen and Helium

6.

The theory that the universe began as a point and has been expanding since is called the _________________.

a)

Point theory

b)

Big l

c)

Big Bang Theory

d)

Big Boom Theory

7.

About how many stars exist in our galaxy?

a)

200 million

b)

200 billion

c)

200 trillion

d)

One

8.

Which galaxy shape is pictured?

a)

Spiral

b)

Elliptical

c)

Irregular

d)

Barred Spiral

9.

The innermost core of our Milky Way may contain a___

a)

Neutron Star

b)

Red Giant

c)

Black Hole

d)

Our Solar System

10.

What shape is the Milky Way? 

a)

Elliptical

b)

Irregular

c)

Spiral

d)

Lenticular

11.

Select the correct order for a star's formation

a)

1. Nuclear fusion begins.

2. Gravity pulls gas and dust together.

3. A large cloud of gas and dust exists.

4. A protostar is formed.

b)

1. Nuclear fusion begins.

2. A protostar is formed.

3. Gravity pulls gas and dust together.

4. A large cloud of gas and dust exists.

c)

1. A large cloud of gas and dust exists.

2. Gravity pulls gas and dust together.

3. A protostar is formed.

4. Nuclear fusion begins.

12.

Stars, dust and gas get bound together by gravity to form ______.

a)

black holes

b)

globular clusters

c)

galaxies

d)

solar systems

13.

Which of these space objects is the largest asteroid in the solar system?

a)

Vesta

b)

Pluto

c)

Ceres

d)

Pallas

14.

These are asteroids in the same orbital path as the planets.

a)

Kuiper Belt

b)

Trojan Asteroids

c)

M type asteroids

d)

Asteroid Belt

15.

Every comet has one tail.

a)

TRUE

b)

FALSE

16.

What happens to a comet as it gets close to the Sun?

a)

It forms long tails made of gas and dust

b)

It melts and disappears

c)

It explodes

17.

Which is found in the belt between Mars and Jupiter

a)

Comets

b)

Asteroids

c)

Meteors

d)

Stars