山东临清实验高中高中英语 Module5 A Lesson in a Lab A Simple Scientific Experiment课件 外研版必修1

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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 experiment ★ To be able to retell the main points in the text ★ To build up the love for science
Conclusion
ordinary water Iron rusts in____________. dry air Iron doesn’t rust in _____ and___________ air-free wa.

boil …

put … in…
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
① → cotton wool ____
② nails → ___
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_____ aim and prepare 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________.
Choose the best title for Passage A.
1.The Different Uses of Metals 2.The Reaction of Metals 3.The Reaction of Metals with Oxygen
Read Passage A again and answer the questions 1. Which metals react the most with oxygen and water? Potassium,sodium and calsium. 2. What happens when you heat calcium in oxygen? It burns to form an oxide. 3. Which metals react with steam?

add …to …

leave …


② result

Observe the following experiment carefully and then write down an experiment report
An Experimennt Report Aim
to find out if potassium reacts with cold water. Apparatu a container, cold water, potassium, filter paper(滤纸), a pair of tweezers(镊子) s 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.
③ oil →___ → water ④ nails →___
→ ordinary
water
⑤ → rusty nails ____
Use of cotton wool ______________ Keep the nails dry ⑥
Use of oil Why it rusts Keep air out of the ________________ ______________ Air in the water ⑧ water ________ ⑦
Homework
•Design a simple experiment about metal in groups of five
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.
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