Fun Learning for Kids

A collection of play based learning activities and fun ideas for young kids!

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Oil and Water Science Exploration

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We’re definitely adding this oil and water science exploration to our growing list of science experiments for preschoolers. But even older kids will enjoy it too! So if you are looking for a quick and easy science exploration for kids, then you have to check this one out.

Plus, check out this list of our favorite science activities for kids.

This oil and water science exploration is a fun science experiment for preschoolers and kids in early elementary.

My kids (4 and 6 years old) get really excited when I set up a science experiment for them and this activity didn’t disappoint. Who am I kidding? Any time they can squirt water with droppers, they are happy as a clam.


Totally Cool Oil and Water Science Experiment!

They actually did this oil and water science experiment several times on this particular day and are already talking about doing it again. They still LOVE our lava lamp science experiment best, but this one is definitely a keeper.

Explore that oil and water don't mix. A science experiment for young kids.

This post contains affiliate links. That means I make a small commission if you purchase items through a link below. It doesn’t cost you any extra, but helps us buy a portion of our activity supplies. 

Preschool science exploration.

It is very simple to set up this activity. You only need a few supplies that you probably already have around the house.

Supplies Needed:

  • Baby oil or vegetable oil (depends on if you want it to be clear)
  • Washable liquid watercolors or food coloring
  • Pipettes or droppers

*If you decide to use baby oil and watercolors, make sure your kids won’t put this in their mouths! As always, keep a close eye on your kids any time that you are doing a science experiment.

  1. Put water in several cups and add food coloring or liquid watercolors to the water. Then stir to combine.
  2. Place a pipette in each colored glass of water.
  3. Fill a cup about half way with oil.

Now let the kids have fun exploring oil and water!

Oil and water science experiment for kids.

Experimenting with oil and water.

While enjoying this science exploration kids will explore how oil and water do not mix together. For young children, there is no need to fully explain the concept behind it, but it is a great start to simply explore the two liquids and see how they behave when mixed together.

Oil and water science.

For kids in early elementary you can explain that oil molecules are only attracted to other oil molecules and water molecules are attracted to water molecules. So they don’t mix together. The reason the oil floats on top is because the oil is less dense than water.

Check out some more oil and water science investigations!

Lava Lamp Science Experiment

Two Color Oil and Water Discovery Bottles from Play Trains

Ocean in a Bottle Sensory Bottle from Happy Hooligans

Adult Supervision Required

Adult supervision is required for all activities I share. Please use discretion when doing the activities with children and only do activities that you feel are safe for your kids. Children under 3 should not participate in any activities that involve small pieces.

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