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Galaxies, Stars & the Solar System

Total questions: 21

Worksheet time: 11mins

Name
Class
Date
1.

Stars are made up of

(a)  

2.

Stars are luminous which means....

a)

They give off their own light

b)

They reflect light

c)

They dont give off any light

3.

A nuclear reaction is a reaction between what two atoms?

a)

Oxygen

b)

Nitrogen

c)

Hydrogen

d)

Helium

4.

When two hydrogen atoms fuse they create a new element called (a)  

5.

The two forms of energy released by stars are heat and...

(a)  

6.

A star dies when it runs out of the element

(a)  

7.

A star that explodes when it dies is a

a)

red giant

b)

supernova

c)

dwarf

d)

bang

8.

Which is the correct order for a stars life cycle

a)

formation, stable period, red giant, white dwarf.

b)

red giant, formation, stable period, white dwarf.

c)

stable period,formation, red giant, white dwarf.

d)

formation, red giant, white dwarf stable period.

9.

A large gas cloud in space is called a

(a)  

10.

A stable star is called a

a)

fully formed

b)

red giant

c)

balanced

d)

main sequence star

11.

When a star becomes a red giant it

a)

shrinks

b)

expands

c)

collapses

d)

dies

12.

When a star becomes a white dwarf it

a)

shrinks

b)

expands

c)

collapses

d)

dies

13.

A galaxy is

a)

Stars and planets

b)

Gravity and stars

c)

Stars, gas and dust

d)

Dust, rocks and gravity

14.

Our galaxy is called

a)

the solar system

b)

the milky way

c)

whirlpool galaxy

d)

sombrero galaxy

15.

Gravity is a ____ force

a)

push

b)

pull

c)

stretch

d)

shrink

16.

What is the biggest source of gravity in our solar system?

a)

earth

b)

moon

c)

jupiter

d)

sun

17.

To be a planet, an object must.... (pick 3)

a)

Orbit a star

b)

Big enough to move other objects out of its way.

c)

Have oxygen

d)

Big enough for its own gravity to make it round

18.

The three types of planets are....

a)

mini

b)

jovian

c)

terrestrial

d)

planetoids

19.

Terrestrial planets are made of

(a)  

20.

Jovian planets are made of

(a)  

21.

The only planetoid in our solar system is

(a)