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Reversible and Irreversible Changes

Total questions: 24

Worksheet time: 13mins

Name
Class
Date
1.
Which of these is NOT a reversible change?
a)
Water to Ice
b)
Juice to Popsicle
c)
Cookie Dough to Cookie
d)
Melting Chocolate
2.
What does a Thermometer measure?
a)
height
b)
weight
c)
length
d)
temperature
3.

Which is not a state of matter?

a)

solid

b)

liquid

c)

gas

d)

ice

4.
A popsicle is a.....
a)
gas
b)
liquid
c)
solid
5.
What is an irreversible change?
a)
Something you can change back.
b)
Something you cannot change back.
6.
What is a reversible change?
a)
Something you can change back.
b)
Something you cannot change back.
7.

Cooking an egg is a..

a)

Irreversible

b)

Reversible

c)

Changes

8.

Melting chocolate is a....

a)

Irreversible

b)

Reversible

c)

Changes

9.

The change happening in the picture is...

a)

Irreversible

b)

Reversible

c)

Changes

10.

Irreversible changes cannot go backwards

a)

True

b)

False

11.

Reversible changes can change back to its original form....

a)

True

b)

False

12.

What change is happening within this picture?

a)

Reversible

b)

Irreversible

13.

When orange juice is frozen to make popsicles, can the popsicles change back to orange juice?

a)

Yes

b)

No

14.

Which of these is NOT an irreversible change?

a)

Burning

b)

Melting

c)

Rusting

15.
Matter can change states.
a)
True
b)
False
16.
What is a solid?
a)
Solids have their own shape and size.
b)
Solids take the shape of their container.
c)
Solids spread out to fill space.
17.
What is a liquid?
a)
Liquids have their own shape and size.
b)
Liquids take the shape of their container.
c)
Liquids spread out to fill space.
18.
What is a gas?
a)
Gases have their own shape and size.
b)
Gases take the shape of their container.
c)
Gases spread out to fill space.
19.
What happens when you take a lot of heat away from a liquid?
a)
It changes to a solid.
b)
It changes to a gas.
c)
It doesn't change.
20.
Adding a lot of heat to solid changes it to a...
a)
liquid
b)
gas
c)
solid
21.
Which one of these is an irreversible change?
a)
Cutting Grass
b)
Folding Paper
c)
Melting Ice
d)
Making Trailmix
22.
Which one of these is a reversible change?
a)
Freezing Water
b)
Popping Popcorn
c)
Cutting Paper
d)
Toasting Bread
23.

During an irreversible change ______________

a)

A new substance is formed.

b)

No new substance is formed.

c)

Nothing happens

d)

There is an explosion.

24.

During a reversible change ______________

a)

A new substance is formed.

b)

No new substance is formed.

c)

Nothing happens.

d)

There is an explosion.

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