The hypothesis is that green algae and red algae will be able to survive in acidic water as they are acidophilic plants.

You will separate the beakers into 3 groups and label them with the type of algae and the pH level. You will add sulfuric acid to the beakers to get the desired pH level. You will observe the algae over a period of time.

You will need 15 ml of spirogyra algae, 15 ml of green algae, 15 ml of red algae, 9 beakers, 1 bottle of sulfuric acid, 1800ml of distilled water, 1 measuring cylinder, several pieces of pH paper, and 1 black marker pen.

The experiment showed that red algae is able to survive in the acidic water and is acidophilic. Green algae is able to tolerate a small amount of acidity in the water but spirogyra cannot survive in acidic waters at all.

This science project is interesting because it shows how acid rain can have a negative effect on the environment.

What would happen if this science fair project was repeated using other acids such as hydrochloric acid or nitric acid? Have you wondered whether algae are able to survive in basic (alkaline) solutions?

Hey there! Here are some awesome videos about this science project that we think you'll really like. They're not only super fun, but they'll also help you learn more about the science behind the project. So sit back, relax, and get ready to have some fun!!