Search for Science Fair Projects

1000 Science Fair Projects with Complete Instructions

Food Science Science Fair Project

Testing Carbohydrate Levels in Milk

Testing Carbohydrate Levels in Milk | Science Fair Projects | STEM Projects
Ever wondered what's in milk? This project will explore the levels of carbohydrates in different varieties of milk. You'll be able to compare the levels of lactose in low fat milk, powdered milk and soya milk.


The hypothesis is that between low fat milk, powdered milk and soya milk, soya milk will contain the lowest amounts of lactose carbohydrates.

Method & Materials

You will measure the levels of carbohydrates in different types of milk by boiling the milk, adding acid and calcium carbonate, and then filtering the solution. You will then measure the amount of lactose crystals formed.
You will need 100 ml of low fat milk, 13g of non-fat powdered milk, 100ml of soy milk, 3 beakers, 1 hot plate, 1 thermometer, 1 bottle 10% acetic acid, 1 stirring rod, 12 grams of calcium carbonate, water, 6 pieces of filter paper, 300ml of ethanol, 3 Erlenmeyer flask and 1 digital weighing scale.


The results showed that fresh milk and powdered milk contain almost the same amount of lactose carbohydrate, while soy milk contains almost 3 times less lactose. This proves the hypothesis to be true.

Why do this project?

This science project is interesting because it allows us to explore the different levels of carbohydrates in different types of milk. It also shows us how milk can be processed and used to make dairy products.

Also Consider

To improve the accuracy of the results, you can test various brands of the same type of milk. You can also repeat the experiment by comparing the lactose content of milk from cows, goats and sheep, or by using different brands of baby formula milk.

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

Garlic vs. Bacteria
Can garlic really fight bacteria? Find out in this science project!
Testing Antacids
Find out which antacid can neutralize the most acid and get relief from heartburn and gastritis!
Turmeric Antioxidant Experiment
Can turmeric juice counteract the effects of perchlorate on daphnia? Find out in this science project!
Share this Science Project: