必修1Module5

1、Guessing game This person is very famous. I think everybody in our class knows this person.YesNo This person often does experiments.This person often uses the following apparatus: This person is very strict with you.Read the passage as quickly as you can and choose the best title for it.A. The Diffe

2、rent Uses of Metals B. The Reaction of Metals C. The Reaction of Metals with Oxygen Passage Areact: if a chemical substance reacts, it changes when it is mixed with another chemical substance. Read the passage again and answer the questions in Activity 3:1. Which of the metals in the table reacts th

3、e most with oxygen and water? Potassium, calcium and sodium.2. What happens when you heat calcium in oxygen? It burns to form an oxide.3. Which metals react with steam? Magnesium, aluminium and zinc.4. Does iron have a slow or fast reaction with steam? It has a slow reaction.5. Does copper react wit

4、h water? No, it doesnt. We know that some of the metals are very active. They can even react with cold water. Sometimes, these reactions are useful in our life and we can make use of them. But sometimes, they are harmful. Here is an example:How can we stop it from rusting?The bike has rusted.The bik

5、e is rusty.We can see rust on the bike.Read the passage and fill in the chart. Passage BIron in dry airIron in air-free waterIron in ordinary waterStage A(starting experiment)cotton woolwater water What do we put in the tubes?Stage B(1 week later)nailswater Nails do not rust.Nails do not rust. Nails rust. Stage C (Result)Conclusion: Iron doesnt in or, while it in Iron in dry airIron in air-free waterIron in ordinary waterHow can we stop our bike from rusting?Homework Try t