How to make your own fun rainbow cloud science experiment

Let’s learn about the weather, and why it rains with this cool rainbow cloud science experiment.

This easy DIY kids project is perfect to teach toddlers and kindergartners at home and in the classroom.

Let’s dive right in.

DIY Rainbow cloud science experiment

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DIY Rainbow Cloud Science Experiment

This science activity for kids it’s perfect for creative sensory play.

It provides an wonderful hands-on opportunity to let children learn the concept of rain with their own eyes and support their understanding.

Depending on your children’s age group you can easily adjust this easy steam experiment with the input of knowledge and its difficulty you are providing.

Here some book recommendations to learn about the weather cycle and how rain is formed:

Here is what you need for our fun STEM activity.


  • food coloring
  • a big clear jar or vase
  • shaving cream
  • water
materials for rain cloud stem activity

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Background knowledge:

For a better understanding of this fun science activity make sure to explain to your children the following facts before you start:

  • water is symbolizing the air
  • shaving creams is our rain cloud and vapor
  • food coloring shows the raindrops

Let’s create our own rainbow cloud now. Simply follow this easy step-by-step instructions below.


Step 1: Prepare the jar

Fill your glass jar or vase with ¾ of water.

Step 2: Create a rain cloud

Add shaving cream on the top of the water to create a big fluffy cloud.

Step 3: Add rain to the cloud

To create rain droplets add various food colors on the shaving cream. The more drops you add, the more rain will fall.

drop food coloring

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Step 4: Let it rain

Watch the drops of food color make its way through the cloud of shaving cream into the water. Pay attention and be prepared the droplets will fall quickly!

How it works:

Through the heat of the sun, water vaporizes into the sky and forms clouds which are symbolized by our shaving cream.

As we add food coloring, the cloud slowly takes in our colored rain droplets.

The clouds fill up and hold as much as they can take in before reaching its abundance.

That’s when the rain falls.

Fun facts about rain and rain clouds:

  • There are different types of clouds the 3 most common once are: cirrus, cumulus, and stratus clouds.
  • Did you know that water can also fall from the sky in the form of hail, sleet, or snow?
  • Rain is an important part of our water cycle. Without water, most parts of our planet would turn into dessert. To learn more about our water cycle take a look here.
let it rain


  • To improve your children’s fine motor skills you can also use small plastic containers and a dropper instead of food coloring. Just add water to each container, add a couple of drops of food coloring to it, and stir it. Let the kids use this colored water to create rain with their pipettes.
  • Besides teaching your kids about the weather this cool science experiment also gives you the perfect opportunity to explain to your children the concept of mixing colors and how new colors are created. Use the primary colors red, yellow, and blue and see what happens when they mix when the rain falls in the water.


My kids love this colorful weather experiment and want to do it over and over again!

It’s a creative way to illustrate how rain is falling from clouds.

Your children can learn a lot from this hand-son stem activity, such as exploring the weather concept, including clouds rain, or even the whole water cycle, introducing new vocabulary and the concept of cause and effect.

Therefore it is a perfect rainy day activity I can fully recommend!

Now I would like to hear from you!

How did your kids enjoy this easy shaving cream rainbow cloud science experiment?

Either way, let me know by leaving a comment below right now.

I love to hear from you!

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Rainbow cloud experiment

DIY Rainbow cloud science experiment

Learn about the concept of rain with this fun rainbow cloud science experiment

Prep Time 5 minutes
Active Time 10 minutes
Total Time 15 minutes
Difficulty easy


  • Shaving Cream
  • Food coloring
  • Water
  • Glas container


  1. Fill your glas container 3/4th with water
  2. Add shaving cream as shown in the picture
  3. Add a couple of drops of food coloring on the shaving cream
  4. Let it rain

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