Search for Science Fair Projects

1000 Science Fair Projects with Complete Instructions

Nutrition Science Fair Project

Cooking Oil and Saturated Fat

Cooking Oil and Saturated Fat | Science Fair Projects | STEM Projects
We're testing the saturated fat levels in different types of cooking oil to see which one has the highest proportion of saturated fat. We'll use a stopwatch to measure how long it takes for the iodine color to clear when the iodine test is performed.


The hypothesis is that peanut oil will have the highest proportion of saturated fat, and when the iodine test is performed, will require the longest time to lose its purple color.

Method & Materials

You will clean the test tubes, label them according to the oils used for testing, measure 20ml of each type of oil, and drip 3 drops of iodine into the first test tube. Start the stopwatch immediately and record the time taken for the purple color of the iodine to disappear.
You will need 1 bottle of peanut oil, 1 bottle of canola oil, 1 bottle of corn oil, 1 bottle of soya bean oil, 1 bottle of olive oil, 5 test tubes, 1 test tube stand, 1 eyedropper, 1 bottle of iodine, 1 stopwatch, and 1 measuring cylinder.


The results showed that the iodine and peanut oil mixture took the longest to revert to the original color, while the canola oil took the shortest amount of time. The hypothesis was proven to be true, as peanut oil has the highest saturated fat content and the lowest proportion of unsaturated fat among the 5 types of cooking oil tested.

Why do this project?

This science project is interesting because it shows how different types of cooking oil can affect our health. It also demonstrates how the iodine test can be used to measure the amount of saturated fat in different types of oil.

Also Consider

Variations of this experiment could include testing different types of oils like oil palm, coconut oil or sunflower oil. Another variation could be to measure the amount of iodine required for all the unsaturated fat in the oil to react.

Full project details

You can find additional information and details for this science fair project here. Have fun exploring!

Related videos

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!!
Share this Science Project:

Related Science Fair Project Ideas

Keeping it Chill
Let's find out if aluminum foil can keep a bottle of water cold for a longer period of time!
Green Tea and Daphnia
Can herbal green tea reduce the heart rate of daphnia? Find out in this science project!
Sugar Content Change in Apples
Find out which type of apple changes the most in sugar content after being taken out of cold storage!
Share this Science Project: