Science Projects With Browning Apples

Chemistry science experiments with real bite...

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Using items in your home explore the world of the unseen with a Microbes science fair project.

What makes an apple brown? This is the first hypothesis that you can test. To do this you will need to look at the chemical reactions that are occurring on and in the apple, as well as the physical changes that are occurring. Make sure you enter notes in your journal about the texture, firmness, smell and appearance of the apple as it browns.

Does light speed up the browning process of an apple? This is a great topic for your science projects with browning apples. For this project you will want to set up two experiments. The control experiment will expose the apple to natural light, nothing will be altered. The test experiments will expose the apple to different amounts of light. Your job will be to determine if the amount of light an apple is exposed to speeds up or slows down the browning process.

Another hypothesis that you can test with your biochemistry science fair projects is does darkness slow down the browning process. This is a variation of the above science projects with browning apples. For this project you will see if keeping an apple in complete darkness will slow down the browning process. You will need to compare the results from this experiment to the amount of time it takes an apple in normal light to brown.

Will an apple brown if it is stored under water? The purpose of this experiment is to see if the absence of the gas form of oxygen will keep an apple from browning. The set up of this project will involve a container with a lid, water and a couple of apples. Use a see through container so you can check the browning process without exposing the apple to the gas form of oxygen.

The final experiment is based on the saying that "one bad apple spoils the bunch." To test this hypothesis you will want to set up two experiments. The control experiment will involve a normal batch of apples, none of which are brown. This batch will not be touched. The second batch will start with apples that are not brown. You will then place an apple that is browning into the batch and monitor it to see how long it takes for the other apples to start browning. After collecting your data determine if adding a browning apple to a bunch of apples will cause the other apples to brown faster. Explain your results.

Discover more about oxidation by time testing how long it takes for an apple to turn brown.