Physical Weathering Experiment
(Ask your Parent’s/Guardians first!!)
Name:
Research Question?
What is the effect of Water freezing on Plaster of Paris?
Prediction/Hypothesis:
I think that ……….
The plaster will
change colour?
Equipment Necessary: Funnel, Graduated Cylinder, Paper Cups, Plaster, Balloon,
Method
1. Fill up balloon with water using the tap. (Turn the tap on slowly)
2. Place the balloon in the Cup.
3. Mix up the plaster with water ratio 60:40 Plaster: Water
4. Pour the plaster mixture over the cup with the balloon.
5. Let it dry for 20 minutes.
6. Place it in freezer.
Results:
Conclusion - Comment on your Results
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Can you explain in your own
words what may happen to
Rocks in this situation
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