How Soap Works S1

Front

What is a surfactant?

Back

A surfactant is a substance that makes things slippery.

Front

What does 'hydrophilic' mean?

Back

Hydrophilic means 'water-loving'.

Front

How does soap work on membranes?

Back

Soap breaks membranes apart.

Front

How long should we wash our hands?

Back

We should wash our hands for 20 seconds.

Front

What makes surfaces slippery?

Back

A surfactant makes surfaces slippery.

Front

What is the opposite of hydrophilic?

Back

The opposite of hydrophilic is hydrophobic, which means 'water-fearing'.

Front

What do surfactants do in soap?

Back

Surfactants help to lift dirt and grease off surfaces.

Front

Why is it important to wash hands?

Back

Washing hands helps to remove germs and keep us healthy.

Front

What happens when soap mixes with water?

Back

Soap forms bubbles and helps to clean surfaces.

Front

What is a common use of soap?

Back

Soap is commonly used for washing hands and cleaning.