1. Limestone Limestone Learning Objectives:
What is Thermal Decomposition?
The reaction of quicklime with water
know the balanced equation for the reaction of limewater and carbon dioxide

2. Thermal Decomposition
Click on the girl for the starter questions
Limestone
Click here for Task
Thermal Decomposition
Why is a Zombie different to a normal person?
What should happen to the human body when life is no longer present?
Do Chemicals decompose?

3. How do you think the following will decompose?
Limestone
How do you think the following will decompose?
Calcium Carbonate
CaCO3
Click on me to reveal answer
CaO + CO2
Copper Carbonate
CuCO3
Click on me to reveal answer
CuO + CO2
Trigger Points – 1. Calcium Carbonate, 2. Copper Carbonate, 3. Sodium Carbonate
Sodium Carbonate
Na2CO3
Click on me to reveal answer
Na2O + CO2

4. Balancing Acts! Limestone
Animator – I would like the bunnies to be able to be moved so the middle moves like a see saw until it is balanced with 3 bunnies each side.

5. Limestone Mg C O O O Mg O C O O
Animator – Same principle as the last slide - I would like the blocks to be able to be moved so they can see that an equation must be balanced.

6. Circle of Life... Limestone
WHOA!! Didn’t see you watching, that’s embarrassing!
I was wondering about the Life of a star and I do not mean David Beckham!
I wonder if chemicals can go through a
‘Circle of Life’?
Circle of Life...

7. Limestone and the “Circle of Life...”
Click on the heading at the bottom then Click on the + and the arrows to reveal the answers
Limestone
Click here for Instructions
Carbon Dioxide
Calcium Oxide
Water
Thermal Decomposition
Calcium Hydroxide
Calcium Carbonate + Water
Note to Teacher – you must click on the write triggers to ensure the circle of life is completed in the correct order. The triggers are the plus signs and the curved arrows. To begin the cycle you must click on the Heading: Limestone and the ‘Circle of Life’
Filter then add Water
Limewater
Ca(OH)2
Carbon dioxide
Limestone and the “Circle of Life...”

8. Limestone Click here to reveal answer Carbon dioxide Limewater
Calcium Carbonate + Water
Complete the word equation above
Ext: Can you write a formula equation for the above reaction?
Trigger Points – 1. Callout 2. Arrow