BBC Science in Action
1. What is the difference between a raw and a cooked onion?
2. Why are chemical reactions in cooking so useful?
3. What is a reactant?
4. What is a product?
5. Can you give an example?
6. What did Femi investigate?
7. What safety measures did she implement?
8. What is a common name for sodium chloride? What did Femi use it for?
9. What happened to the mass of the product when iron wool was burned? Why?
10. What did the iron react with? What is this type of reaction called?
11. What is the new substance called?
12. Can you explain what rust is? Which type of chemical reaction took place?
13. Which object was brought up from the submarine?
14. How much iron becomes iron oxide in Great Britain in one minute?
15. Why is sodium kept in oil?
16. What is Femi investigating next?
17. Which metals were used for Alex’s implants?
18. Which elements were at the bottom of the reactivity series?
Tagged under: SIA,Chemical,Reactions
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