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Fizzing Fun with Bath Bombs

Total questions: 15

Worksheet time: 8mins

Name
Class
Date
1.

What are the two basic ingredients needed to make a bath bomb?

a)

Citric acid and sugar

b)

Citric acid and sodium bicarbonate

c)

Sodium bicarbonate and salt

d)

Salt and sugar

2.

What type of reaction occurs when making a bath bomb fizz?

a)

Combustion reaction

b)

Neutralisation reaction

c)

Decomposition reaction

d)

Synthesis reaction

3.

What gas is released during the bath bomb reaction?

a)

Oxygen

b)

Hydrogen

c)

Carbon dioxide

d)

Nitrogen

4.

What is sodium bicarbonate also known as?

a)

Baking powder

b)

Baking soda

c)

Table salt

d)

Vinegar

5.

What happens to the bath bomb when it is placed in water?

a)

It melts

b)

It freezes

c)

It dissolves and fizzes

d)

It evaporates

6.

What is the role of citric acid in the bath bomb?

a)

It acts as a colourant

b)

It acts as an acid

c)

It acts as a preservative

d)

It acts as a sweetener

7.

What type of reaction is demonstrated by the fizzing of a bath bomb?

a)

Reversible reaction

b)

Non-reversible reaction

c)

Physical change

d)

Endothermic reaction

8.

What is formed when an acid and an alkali react together?

a)

Only water

b)

Only salt

c)

Salt and water

d)

Gas and water

9.

What is the main reason for the fizzing effect in bath bombs?

a)

Release of oxygen

b)

Release of carbon dioxide

c)

Release of hydrogen

d)

Release of nitrogen

10.

What is the state of the bath bomb ingredients before they are placed in water?

a)

Liquid

b)

Gas

c)

Solid

d)

Plasma

11.

What is the purpose of adding colours and smells to bath bombs?

a)

To make them heavier

b)

To make them dissolve faster

c)

To make them more attractive and pleasant

d)

To make them last longer

12.

What is the scientific term for substances like sodium bicarbonate?

a)

Metal oxides

b)

Metal carbonates

c)

Metal sulfates

d)

Metal nitrates

13.

What happens to the bath bomb ingredients when they are dry?

a)

They react and fizz

b)

They remain inactive

c)

They melt

d)

They evaporate

14.

What is the main visual sign of the chemical reaction in a bath bomb?

a)

Change in colour

b)

Production of bubbles

c)

Change in temperature

d)

Change in shape

15.

What is the main educational value of the bath bomb experiment?

a)

It shows how to make soap

b)

It demonstrates a chemical reaction

c)

It teaches about plant growth

d)

It explains the water cycle