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Science Unit5: Acid vs Alkali

Total questions: 11

Worksheet time: 12mins

Name
Class
Date
1.

What does this symbol mean?

a)

Poisonous

b)

Flammable

c)

Irritant

d)

Corrosive

2.

Name an acid. (Just the name)

(a)  

3.

What does this symbol mean?

a)

Poisonous

b)

Flammable

c)

Irritant

d)

Corrosive

4.

What does diluting an acid mean?

a)

Drinking an acid

b)

Mixing an acid with water

c)

Reducing how harmful it is

d)

Placing warning symbols on an acid

5.

If we mix Acid with Litmus what colour will it turn?

a)

Purple

b)

Green

c)

Blue

d)

Red

6.

Which of the below is NOT an indicator?

a)

Tea

b)

Litmus

c)

Blackberry Juice

d)

Grape Juice

7.

What is the pH of a weak acid?

a)

4-6

b)

5-7

c)

1-6

d)

4-5

8.

Bjorn Alexander, a chef, poured some suspicious brown liquid into a universal indicator. The brown liquid can be apple vinegar (Ph 2.5), root beer (Ph 4.5), Black Tea (Ph 6.3), or Brown Toothpaste (Ph 9). The Universal Indicator turned Yellowish Green after he poured the liquid In. What do you think it is?

a)

Root Beer

b)

Black Tea

c)

Apple Vinegar

d)

Brown Toothpaste

9.

A bee sting is pH 3.5.

It is acidic.

Lena got stinged by a bee while at home. She has Lemonade(ph 2-3) , Coca-Cola(ph 2.5), and Water at home. By the oven, she also sees an Oven Cleaner(ph 13). What should she use to neutralise the sting?

(a)  

10.

What is the process of mixing an acid with an alkali called?

a)

Intermingleing

b)

Neutralization

c)

Dilution

d)

Acidification

11.

Donald Trump, the leading healthcare professional in the US, says,

If there is too much acid in your stomach, don't eat antacids. Drink Trump's Oven Cleaners!

Explain why this is not a good idea.

4 lines