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reversible & irreversible changes (PYP4)

Total questions: 15

Worksheet time: 10mins

Name
Class
Date
1.

What is an irreversible change?

a)

Something you can change back.

b)

Something you cannot change back.

2.

What is a reversible change?

a)

Something you can change back.

b)

Something you cannot change back.

3.

Which of these is NOT a reversible change?

a)
b)
c)
d)
4.

Cooking an egg is a..

a)

Irreversible

b)

Reversible

5.

Melting chocolate is a....

a)

Irreversible

b)

Reversible

6.

The change happening in the picture is...

a)

Irreversible

b)

Reversible

7.

burning wood is ........... change

a)

Reversible

b)

Irreversible

8.

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

a)

Yes

b)

No

9.

Choose the TWO reversible changes:

a)
b)
c)
d)
10.

i like ......

a)
b)
c)
d)
11.

cutting paper is

a)

Reversible change

b)

irreversible change

12.
a)

Reversible change

b)

irreversible change

13.
a)

irreversible change

b)

reversible change

14.
a)

irreversible change

b)

reversible change

15.
a)

reversible change

b)

irreversible change