The greenhouse effect (science)

The Greenhouse Effect 

Materials: 

• 1 plastic bottle 
• 1 teaspoon baking soda and citric acid 
• 1 heat lamp 
• 1 thermometer 
• 100 ml water 
• 1 rubber bung 

Steps: 

1. Collect 2 bottle, 2 thermometers and 2 lamps from the teacher. 
2. Set up bottles and lamps beside the powerpoint, and put the bottles on a flat surface. 
3. Pour 100ml of water and baking soda mixture into one of the bottles.  

Recording: 

Minutes	Bottle 1: Water	Bottle 2: CO2 Gas
0	21	21
5	24	26
10	25	32
15	26	35
20	27	41