1. Reactions of Metals
29 November 2018

2. What happens to the bike if you leave it outside?
If you have the answer consider why this happens

3. Metal react with oxygen
This process is called oxidation and leads to corrosion. Rusting is a good example of this.
We can speed up the process by heating metals

4. Experiment 1 Heat the 3 samples in roaring Bunsen burner flame.
Care with Magnesium it is dangerous!

5. Results table Metal Appearance before effect of heating in air
Appearance after
Iron wool
Copper
Magnesium

6. What happened
Metals + Oxygen  metal oxide Metal oxides are not elements they are called compounds and will be covered in a later lesson

7. Experiment 2: Metals with acid
Place a small piece of metal into dilute acid
Watch what happens and record the results

8. Metals and Acid Results table
Appearance before
What happens ?
What is left
Copper
Magnesium
Iron
Zinc

9. What happened
Metal + acid  a salt + hydrogen
Why did it fizz?

10. Write it up Write down what you have found out today
Did all the metals behave the same?
Was there anything in common between the two experiments?

11. Homework
Learn the key words definitions
Due in 1 week