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Reversible and Irreversible changes

Total questions: 10

Worksheet time: 5mins

Name
Class
Date
1.

What are changes that you can UNDO called?

a)
b)
2.

Samuel boils an egg. Is it reversible or irreversible?

a)

Reversible

b)

Irreversible

3.

What is an irreversible change?

a)

Something you can change back

b)

Something you cannot change back

4.

Which of the following is NOT a reversible change ?

a)

Freezing of water

b)

Baking a cake

c)

Heating water to give steam

d)

Melting of chocolate

5.

Which of the following changes can you reverse?

a)

Melting butter

b)

Burning wood

c)

Digesting food

6.

Tick ALL the changes that are irreversible

a)
b)
c)
d)
7.

During a process a new product is formed. This means it is a

a)

Reversible change

b)

Irreversible change

8.

What is 'B'? Complete the flow diagram for phase changes between ice and water.

a)

Steam (gas)

b)

Ice (solid)

c)

Water (liquid)

9.

Is recycling of glass reversible or irreversible?

a)

Reversible

b)

Irreversible

10.

Identify if heating of wax is a reversible or irreversible change?

a)

Irreversible

b)

Reversible