Acid Rain and Solar Energy

Acid Rain and Solar Energy

Acid Rain and Solar Energy

 

To demonstrate the harmful effects acid rain can have on trees we conducted a scientific experiment. We put two tubs of cress in separate bags and sealed one of them. To make it a fair experiment we changed one variable – we added a cup of campden tablet solution to the bag. 

The experiment was supposed to show effects in a couple of hours but ours didn’t! We added another campden tablet and waited overnight. We still saw no change. After adding another 4 campden tablets, we left them for a few days. By Thursday there was a definite difference in the colour (and health) of the tubs of cress. 

This experiment has demonstrated how the environment that trees and plants are living in can have an effect on their health. 

Acid rain can also have a harmful effect on buildings, plant life, farming productivity and fish. 

 

We also learned how we can test how 'acid' a rain is.  We added universal indicator to water and it turned green.  We then blew bubbles in to the water and it turned orange.  This is because we breathe out CO2.  This was really fun!

 

After learning about the effects of fossil fuels and how they are running out, we learned about solar energy and conducted an experiment.  We had solar cells and a meter to measure voltage of energy.  We moved the lamp further away from the solar cell and saw how the amount of energy produced changed.  This was a great experiment.