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高一英语必修1课件:Module 5 A lesson in a Lab


Module 5

A Lesson in a Lab

A Simple Scientific Experiment

★To know some metals and their

reactions with some substances ★To learn how to do an exp

eriment ★ To be able to retell the main points in the text ★ To build up the love for science

What was it made of ?

potassium sodium

calcium

magnesium

aluminium

zinc

iron

copper

Choose the best title for Passage A.

1.The Different Uses of Metals 2.The Reaction of Metals 3.The Reaction of Metals with Oxyge

Read Passage A again and answer the questions
1. Which metals react the most with Potassium,sodium and oxygen and water? calsium. 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? Slow. 5. Does copper react with water?
No, it doesn’t.

After learning Passage A Do you think it is scientificto make Goujian Sword by using copper

What can we learn from Passage A?
how It is very important to know___ metals can react with different substances __________________________. It is very useful in our daily life.

Passage B
How many stages are there in a scientific experiment report

Iron in dry air

Iron in air-free water

Iron in ordinary water
ordinary →
water

① → cotton wool ____
② nails → ___

③___ →oil →water ④___ → nails

⑤ →____ rusty nails

Use of cotton Use of oil Why it rusts wool Keep ⑦ air out of the⑧______________ ________________ Air in the water ⑥ water Keep the nails ______________ dry ________

Conclusion

ordinary water Iron rusts in_______________ dry air Iron doesn’t rust in ___________ and____________ air-free water .

half-fill …with..



boil …



put … in…



add …to …



leave …




② result



Observe the following experiment carefully and then write down an experiment report
C:\Users\lenovo\Desktop\钾与水反应.flv

An Experimennt Report Aim

to find out if potassium reacts with cold water. Apparatus a container, cold water, potassium, filter paper(滤纸), a pair of tweezers(镊子) Method (1)Half-fill the container with cold water. (2)Take a piece of potassium out of the oil. (3)Dry the potasium with the paper. (4)Put the potassium into the water.

Result
Conclusion

The potassium burns.

Potassium reacts with cold water.

Sum up
? How can you do a scientific experiment successfully? First, we need to have an_____ and prepare aim apparatus _________ for the experiment before we do the experiment. methods Second, we must use correct________to do the experiment and watch carefully. result conclusion Then we can get the____and draw a________.

Homework
?Design a simple experiment about metal in groups of five and write down an experiment report.


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