The Green House Affect

AIM: TO LOOK AT CLIMATE CHANGE AND THE GREENHOUSE EFFECT.

THE GREENHOUSE GASES EXPLAINED.

The Greenhouse Effect experiment

Materials

1. 1 plastic bottle
2. 1 Teaspoon Baking Soda and Citric Acid
3. 1 heat lamp
4. 1 Thermometer
5. 100 ml water
6. 1 rubber bung

Procedure

1. Add 100 ml of water to each of the beakers.

2. Prepare your lamps. Set them up next to each other with the necks angled so they will just fit over the tops        of the bottles. Turn them on so they are ready.

3. Add Baking Soda mix to one of the beakers, and immediately cover both beakers with cling a rubber bung and thermometer. A tight seal around the edge will work best, and make sure thermometers are left visible so you can record the temperature.

4. Have students record the starting temperature – it should be the same in both beakers.

5. Turn the bottles so the thermometer is visible.

6. Record the temperature in both beakers every 5 minutes for 45 minutes or until the temperatures stabilise.At the end have students answer questions at the bottom of their data sheets. 

Findings:

Minutes	Bottle 1: Water	Bottle 2: CO2 Gas
0	21	21
5	25	18
10	27	20
15	31	23
20	34	24
25	34	27
30	36	29
35	DNF	DNF
40
45
50

Conclusion: