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Cambridge Secondary (7-9). Stage 8. Science. Learner's Book - Unit 8: Chemical reactions - Question 45

Cambridge Secondary (7-9) · Unit 8: Chemical reactions

Question 45

In this activity, you will heat several different metals in air. Air contains oxygen, and some metals will react with it.

Read through the instructions and decide on the safety precautions you will need to take. Discuss these in your group and then with the class before you carry out your investigation.

You will need:
- safety glasses
- Bunsen burner
- heatproof mat
- tongs
- small pieces of metal such as magnesium, zinc, iron and copper

Method
1 Take a small piece of one of the metals.
2 Place it in the tongs and heat it in a Bunsen flame.
3 Record your observations in a table. Explain what happened.
4 Repeat steps 1–3 for each of the other metals.
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