This magic colored milk science project is always a favorite and is so easy to change up with seasons, holidays, and special days! Valentine’s Day Magic Milk is a simple twist on a classic science experiment the kids always enjoy! Explore Valentines Day science with a Valentine’s Magic Milk science experiment and enjoy an explosion of color!


Simple science can be explored all year round with fun themes to make it new and engaging each time! Even something as simple as adding a cookie cutter creates a sense of excitement for young kids. Valentines science ideas are perfect for an effortless indoor activity.

No two magic milk science activities will ever be the same! It’s an explosion of color in your dish. Think fireworks and cool chemistry!

Kids are curious creatures and sharing fun and simple science activities at home or in the classroom is just another way to spark the fun in learning. We prefer to keep our science playful too.


Let’s keep it basic for our younger or junior scientists! Chemistry is all about the way different materials are put together, and how they are made up including atoms and molecules. It’s also how these materials act under different conditions. Chemistry is often a base for physics so you will see overlap!

What might you experiment with in chemistry? Classically we think of a mad scientist and lots of bubbling beakers, and yes there is a reaction between bases and acids to enjoy! Also, chemistry involves matter, changes, solutions, and the list goes on and on.

We will be exploring simple chemistry you can do at home or in the classroom that isn’t too crazy, but is still lots of fun for kids! You can check out some more chemistry activities here. Check out the video! You can never recreate the same look twice.



If you want to make this truly a science experiment that adds a bit of scientific method to your activity, you need to change up one variable. You can learn more about the scientific method here. What variable would you change? The type of milk, maybe?

Open the cupboards and get set for a little kitchen science…

—>See them all here: Best Valentine’s Day Science for Kids

  • Full Fat Milk
  • Blue Food Coloring
  • Dawn Dish Soap
  • Cotton Swabs
  • Heart Cookie Cutter


Start by pouring your milk into a baking dish or flat bottom surface. You don’t need a lot of milk to cover the bottom and then some.

Your kids will probably want to try this one over and over again!

Next, you want to fill the top of the milk with drops of color! Use traditional Valentine’s Day theme colors or a mix of your favorite ones. Add a cookie cutter too!

You can pour a bit of dish soap into a small bowl. Next, coat your cotton swab tip to the dish soap. Then bring it over to your milk dish and gently touch the swab to the surface of the milk! What happens?

Read the science below to learn more about this cool chemical reaction between the milk and the soap.

Remember, it will be a bit different each time you try magic milk. It’s a fun fireworks theme science activity for the 4th of July or New Year’s! Make a rainbow for St Patrick’s day or a pastel surprise for Easter. We made one for Christmas too!

If you have extra milk… try making plastic out of milk! 


This magic milk science project gets its burst of color from chemistry…

The science behind Valentine’s day magic milk:  The chemistry between the dish soap and the fat in the milk makes the magic happen. While some of the dish soap’s properties dissolve in the water, the other properties search out the milk’s fat.

 Milk is made up of vitamins, minerals, proteins, and fats. When the soap is added to the milk, the protein and fats are broken apart. The soap heads for the fats creating the cool bursting of color. All the fat molecules have been found when there is no more movement. Are there any more hiding? Try another q-tip dipped in soap! 

Turn it into a science experiment: Explore other milk varieties, including reduced-fat milk, heavy cream, and even alternative milk!


Kids are always looking to explore, discover, check out, and experiment to discover why things do what they do, move as they move, or change as they change! Indoors or outdoors, science is amazing!

Science surrounds us, inside and out. Kids love checking things out with magnifying glasses, creating chemical reactions with kitchen ingredients, and of course exploring stored energy! Check out 35+ awesome science projects to get started.

There are lots of easy science concepts that you can introduce kids to early on! You might not even think about science when your toddler pushes a card down a ramp, plays in front of the mirror, laughs at your shadow puppets, or bounces balls repeatedly. See where I am going with this list! What else can you add if you stop to think about it?

Science starts early, and you can be a part of that by setting up science at home with everyday materials. Or you can bring easy science to a group of kids! We find a ton of value in cheap science activities and experiments.


We have the best in Valentine’s Day science if you click here or on the image below.