Search for Science Fair Projects

1000 Science Fair Projects with Complete Instructions

Food Science Science Fair Project

Make Plastic From Milk

Make Plastic From Milk | Science Fair Projects | STEM Projects
In this captivating chemistry experiment, we'll explore how heat and acid affect milk protein casein. By heating up milk and adding vinegar, the casein separates, creating a moldable plastic-like substance. Try this hands-on experiment to witness milk transform in an unexpected way!


The hypothesis is that heat and acid will cause a reaction in milk proteins.

Method & Materials

You will place skim milk in a pot, add vinegar, heat, and stir until lumps form. Then filter the solid from the liquid, add water and baking soda, and observe the results.
You will need skim milk, a beaker, vinegar, a heat source, baking soda, a funnel and filter paper, a stirring rod, water, and a graduated cylinder.


The heat and acid changed the properties of the milk. We observed a precipitation reaction and a neutralization reaction, which changed the milk from a liquid to a plastic-like substance.

Why do this project?

This science project is interesting and unique because it uses everyday items to create an unexpected plastic-like substance that can be molded into different shapes.

Also Consider

Experiment variations to consider include using different types of milk (lowfat, whole milk, almond milk), adding different amounts of vinegar, and cooking the mixture at different temperatures.

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!!
Are you curious to see if milk can actually fix a broken plate? And that's not all, did you know that you can even make a plate or cup out of plastic milk? Let's watch this video and discover if it's possible to drink milk out of a cup made entirely out of milk!
Making LEGO figures out of milk might sound unbelievable, but the science behind Plastic Milk makes it possible! In this exciting video, you'll learn how to turn regular milk into plastic and how you can shape it into fun shapes like LEGO figures and dinosaurs. Imagine being able to create a whole set of fun figures using just milk and a few simple ingredients.
Have you ever run out of glue in the middle of a project and didn't know what to do? Well, don't worry! You can make your own glue with milk using a variation of the plastic milk experiment. Check out this video to see how it's done!
Share this Science Project:

Related Science Fair Project Ideas

One Minute Spaghetti
Science makes it possible to cook spaghetti in just a minute! Soak it first, then cook in a flash. Save the planet while enjoying your favorite dish!
Rock Candy: Sweet Science
Get ready to become a candy-making scientist! Grow your own giant sugar crystals and make rock candy you can eat!
Lemon Juice Invisible Ink
Want to uncover secret messages like a super spy? Learn how to write and reveal messages using lemon juice and a hair dryer!
Share this Science Project: