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What can you see?
What equipment or substances(物质) do you have about the chemical experiment in your memory?
A.The Different Uses of Metals
B.The Reaction of Metals C.The Reaction of Metals with Oxygen
The stages of a scientific experiment
A.result B.aim C.conclusion E.apparatus
D.method
BFra Baidu bibliotek
E
D
A
C
A Simple Scientific Experiment
cotton wool
water
water
water
nails
1. The meaning of the choice is too narrow. 2. The meaning of the choice is too general. 3. The meaning of the choice is off the subject.
⒈Which of the metals in the tables reacts the most with oxygen and water?
air container(集气瓶) flame, oxygen, spirit lamp
If you want to learn scientific subjects well, what qualities should you have in your opinion?
⒉What happens when you heat calcium in oxygen? ⒊Which metals react with steam? ⒋Does iron have a slow or fast reaction with steam? ⒌Does copper react with water?
The nails haven’t rusted The nails do not rust The nails rust
Conclusion:
Aim: To observe the nature of magnesium Equipment/Apparatus: . . . Method: First,… Then,… Next, . . . Result: You can see … Conclusion: Magnesium can burn to form an oxide in oxygen.
What equipment or substances(物质) do you have about the chemical experiment in your memory?
A.The Different Uses of Metals
B.The Reaction of Metals C.The Reaction of Metals with Oxygen
The stages of a scientific experiment
A.result B.aim C.conclusion E.apparatus
D.method
BFra Baidu bibliotek
E
D
A
C
A Simple Scientific Experiment
cotton wool
water
water
water
nails
1. The meaning of the choice is too narrow. 2. The meaning of the choice is too general. 3. The meaning of the choice is off the subject.
⒈Which of the metals in the tables reacts the most with oxygen and water?
air container(集气瓶) flame, oxygen, spirit lamp
If you want to learn scientific subjects well, what qualities should you have in your opinion?
⒉What happens when you heat calcium in oxygen? ⒊Which metals react with steam? ⒋Does iron have a slow or fast reaction with steam? ⒌Does copper react with water?
The nails haven’t rusted The nails do not rust The nails rust
Conclusion:
Aim: To observe the nature of magnesium Equipment/Apparatus: . . . Method: First,… Then,… Next, . . . Result: You can see … Conclusion: Magnesium can burn to form an oxide in oxygen.