Acids and alkalis

What is an acid

• Sour substance

• Soapy substance

• Water

• Clay

Examples of an alkali

• Soap

• Vinegar

• Toothpaste

• Lemon

Examples of an alkali

• Soap

• Vinegar

• Toothpaste

• Lemon

When you put litmus paper into an acidic solution what colour does it turn

• Blue

• Red

• Green

• Yellow

What are acids and alkalis

• Corrosive

• Reactive

• Irritant

How can you protect yourself from corrosive substances

(a)  

What is neutral

• 12

• 7

• 10

• 1

What numbers does the ph scale have

• 0-14

• 1-15

• 5-8

• 10-20

What does irritant mean

• It cuts you

• It burns you

• It makes you have a rash

• It makes you smell

What does corrosive mean

• It burns your eyes and skin

• It itches you

• It stings you

• It makes you smell nice