Do now! Can you read the experiment we did last

lesson?

He’s going to blow!

Be careful

Good

Neutral

Excellent

MOODOMETER

What can you tell me about last lesson?

Today’s lesson

• Know what to look for to see if a chemical reaction has occurred

• Give some examples of chemical reactions

• Explain the difference between a physical and chemical change

Chemical reactions – What to look for

Chemical reactions – What to look for

• There may be a change of colour

Chemical reactions – What to look for

• There may be a gas given off (bubbles)

Chemical reactions – What to look for

• There may be an energy change (gets hotter or colder)

Chemical reactions – What to look for

• New substances are formed, and the change is usually difficult to reverse

Physical changes

Melting

Boiling

Condensing

Solidifying/freezing

Examples of chemical reactions?

In your groups can you think of examples of chemical reactions from your home?

Can you write them roughly on the coloured piece of paper?

Let’s try some questions!

I know you love to do this!