Easy Science Fair Projects

Science Fair Food Projects – How To Stop Food From Rotting

24 Hour Science Projects

This is one example of our easy science fair food projects the kids will enjoy. You will need about two weeks to complete it so, if you have waited until the last minute it may be a good idea to have a look at 24 Hour Science Projects where you will find many you can do in 24 hours or less.

For a good science fair project you have to make notes of all your steps, saying what you are doing and why you are doing it. You must formulate a hypothesis, and do the experiment according to the correct scientific method and think of your display. It is always a good idea to take photos as you go. Once again, if you are unsure, go to 24 Hour Science Projects.

This experiment is going to show us why some substances can be used as preservatives. What is a preservative? In this experiment we are going to look at natural preservatives and not chemicals developed by scientists.

Science fair food projects always have a very practical lesson for the kids to learn and this one is no exception. They will see why some ordinary household food ingredients have been used for centuries to preserve food, especially before refrigerators and freezers where available!

After the project has been completed, let an adult dispose of all the food as it may be rotting. It is also best to let an adult do all the cutting involved.

What you will need for your experiment:

• An apple sliced into six equal pieces
• 6 Small jars
• Enough salt to fill a jar
• Enough sugar to fill a jar
• Enough antibacterial soap to fill a jar
• Enough vinegar to fill a jar
• Enough water to fill a jar
• A felt tipped pen
• Some paper plates
• Labels to label your jars with
• A knife
• Disposable utensils to work with the rotting apple pieces (so your hands do not come into contact with them.)

How to do your experiment:

1. Label the jars as follows: sugar, salt, vinegar, antibacterial soap, water and control.
2. Do you know what the “control” is for? This goes towards the proper scientific method.
3. Now you place a piece of apple in each jar.
4. Remember to take photos of each step for your display
5. Now you have to completely cover the apple pieces with each substance.
6. In the jar marked “sugar,” you cover the piece of apple completely with sugar and in the jar marked “salt” you cover the piece of apple completely with salt etc.
7. In the jar marked “control” you do not cover the piece of apple with anything.
8. Do you know why you do not cover the piece in the “control” bottle with anything?
9. Now you have to place the jars in a cool place
10. After one week your take the jars and examine their contents.
11. Make detailed notes of all the changes and do not forget to take photos
12. When you want to look at the pieces in the sugar and salt where you cannot see through the substances, throw them out on a paper plate and use the disposable utensils to dig them out and look at them
13. Which apple pieces rotted?
14. Which of the pieces have the appearance that they have been preserved?
15. Do the preserved pieces appear dried out?
16. Can you observe any color changes in the pieces of apple?
17. Can you notice any difference in the texture of the apple pieces?
18. These are all the things you have think of and make meticulous notes of.
19. Remember your photos!
20. Now it is only a case of putting your display together and you will have done one of our fun science fair food projects.

For more Science Fair Food Projects you can have a look at our site Easy Science Fair Projects.

If you have no more time and your project has to be in by tomorrow, best go to 24 Hour Science Projects and get a complete project you can do in 24 hours or less.

Check out 24 Hour Science Projects.