Physical and Chemical Changes (Experiment Review)

What are two physical properties of copper?

• Solid

• Compressible

• Non-conductive

• Reddish-brown colour

Tags

Activity 1

What are two physical properties of water?

• Gas

• Transparent

• Non-conductive

• Strong odour

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Activity 1

What are two physical properties of iron?

• Liquid

• Non-compressible

• Non-conductive

• Strong hardness

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Activity 1

Chemical reactions are irreversible.

• True.

• False.

Melting chocolate is a chemical change.

• True.

• False.

Making caramel is a physical change.

• True.

• False.

Heating washing soda is a chemical change.

• True.

• False.

What happens when iron wool reacts with copper sulphate?

• No chemical change occurs.

• The iron wool contracts.

• The blue colour of the solution changes to pale green.

• The wool becomes coated in brown copper.

What product is formed when magnesium ribbon is burnt in air or oxygen?

• Magnesium Sulfate

• Magnesium Oxide

• Magnesium Chloride

• Magnesium Carbonate

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Activity 6

What are two physical properties of magnesium oxide?

• White

• Smoke

• Powdered Solid

• Liquid

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Activity 6