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Cambridge Secondary (7-9). Stage 7. Science. Learner's Book - Unit 8: Changes to materials - Question 6

Cambridge Secondary (7-9) · Unit 8: Changes to materials

Question 6

In this task you will burn some magnesium and produce a new product.

You will need: safety glasses, a Bunsen burner, a heat-proof mat, tongs, a piece of magnesium ribbon.

Safety
Wear safety glasses. While the magnesium ribbon is burning, do not look directly at the flame. Magnesium burns very brightly and the bright light could harm your eyes.

1. Set up the Bunsen burner on the heat-proof mat.
2. Take a small piece of magnesium ribbon and place it in the tongs.
3. Hold the tongs at arm’s length and place the magnesium ribbon in the Bunsen flame.
4. Once the magnesium ribbon has caught fire, remove it from the flame.

Additional safety guidance: Carry out this classroom experiment only under the teacher’s supervision. Keep clear of hot equipment and let the tongs cool before touching them.

Name the reactants in this chemical reaction.
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