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LAYERS OF THE EARTH AND BIG BANG

Total questions: 15

Worksheet time: 23mins

Name
Class
Date
1.

What is a galaxy?

a)

A galaxy is a huge collection of gas, dust, and billions of stars and their solar systems, all held together by gravity.

b)

A galaxy is a huge collection of water, plants, and billions of planets and their solar systems, all held together by love.

c)

A galaxy is a huge collection of cities and billions of stars and their solar systems, all held together by tape.

2.

Write the name of our galaxy?

(a)  

3.

When did the big bang happen?

a)

13.7 billions ago

b)

1 year ago

c)

100 millions ago

d)

10 billions years ago

4.

What is the Milky Way?

a)

A planet that is known for its rings.

b)

The galaxy that contains our solar system.

c)

A type of star that is very bright and can be seen from Earth.

5.

what happened after the big bang?

a)

After the big bang the universe quickly began get smaller.

b)

After the big bang the universe quickly began toheat up and expanding.

c)

After the big bang the universe quickly began cooling and expanding.

6.

Some galaxies are spiral-shaped like ours. They have curved arms that make it look like a (a)   .

7.

What is the only planet that has liquid water on its surface?

a)

Mars

b)

Jupiter

c)

Earth

d)

Venus

8.

There are five layers: they are ...

a)

Solid, liquid, gas and plasma.

b)

crust, the upper mantle, the mantle, the outer core, and the inner core.

c)

Rivers, lakes, aceans, montains and streams.

9.

What layer of the earth is decribed:

Is the top layer that we live on. It looks different in different places, some areas have mountains, oceans, lakes and hills, others don’t.

a)

Inner core

b)

Mantle

c)

Crust

d)

Outer core

10.

Which planet is known as the Red Planet?

a)

Saturn

b)

Mercury

c)

Mars

d)

Earth

11.

What is the name of the force that keeps planets in orbit around the sun?

a)

Magnetism

b)

Gravity

c)

Friction

12.

.......... ......... mixes and moves, causing pressure underneath the crust. This pressure can sometimes cause the mantle to leak out onto the surface of the Earth - a volcano!


a)

upper mantle

b)

core

c)

crust

13.

The ______ ______ is a super-heated liquid made of iron and nickel.

(a)  

14.

_____ ______ core is made up of the same metals as the outer core (iron and nickel) but, instead of being liquid, it is a solid.

a)

mantle core

b)

outer core

c)

inner core

d)

crust

15.

Many scientists believe the ______ layer is made up of a churning mass

of magma, molten rock and solid igneous rock.

a)

crust

b)

core

c)

mantle