Summer Vacation Science Experiments

Max’s summer vacation has started!  We have our summer planned, which is very exciting (I’m not a planner!).  We will be doing science experiments, art projects, and many other fun activities during the next few weeks.  I will be posting them so let me know what you think!

Today we did two experiments with color and absorption.

Experiment One

Preschool Kindergarten Science


Paper Towels

Food Coloring: Red, Blue, Yellow

3 Clear Plastic Cups


Preschool Kindergarten Science 2

– Fill each cup with water.

– Put 5 drops of red dye in one cup, 5 drops of yellow in the next, 5 drops of blue in the last.

Preschool Kindergarten Science 5

– Roll paper towels into a tube and put in each cup, making sure to keep the towels connected between cups.

Preschool Kindergarten Science 3

– Allow enough time for paper towels to absorb the liquid.


Preschool Kindergarten Science 6

Once the liquid is absorbed in the paper towels you will see orange, purple, and green.

Experiment Two


1 Paper Towel

Food Coloring: Blue and Yellow

3 Clear Plastic Cups


Preschool Kindergarten Science 7

-Fill two cups with water, placing the empty cup between them.

Preschool Kindergarten Science 8

– Put 5 drops of blue food coloring in one cup and 5 drops of yellow food coloring in the other.

Preschool Kindergarten Science 9– Cut the paper towel in half, folding it.  Place one end in the blue water and the other in the empty cup.  Do the same with the yellow cup.

– Allow time for liquid to absorb.


Preschool Kindergarten Science 10

The paper towels will absorb the blue and yellow liquid and deposit it into the empty cup, making green!

Lesson Planning

My son just graduated from preschool, so I made this a preschool lesson.

Important questions to ask:

What do you think will happen when we put the paper towel in the water with food coloring?

What happens when you mix red/blue, blue, yellow, yellow red?

How long do you think it will take to mix?


Draw a picture of the results.  Answer question:  What happened in this experiment?

Preschool Kindergarten Science 11

The dye traveled up the napkin and made green



This is a great book to read with this experiment.  It is about color mixing and is very easy to follow along.

Max had a great time with these experiments.  They do take all day, so make sure your child understands they will have to wait.  If they have a tendency to be impatient (what child doesn’t?) do something while you are waiting  (Read the book, draw a picture of what you think will happen, etc.)!


Categories: Teaching

Tags: , , , , , , , ,

5 replies

  1. Terrific! I remember doing things like that with my kids. Now I have to wait for grandkids. Have a fun and educational summer! 🙂

  2. about how long did you have to wait for the colors to start to show in the paper towels?

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