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DIY Rainbow Cloud Science Experiment

Updated: Nov 15

Science Activity for Kids

DIY Rainbow Cloud Experiment

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Let's learn about the weather, and why it rains with this fun rainbow cloud science experiment. This easy DIY kids project is perfect to teach toddlers and kindergartners at home and in the classroom. It's a creative sensory play and hands-on activity that lets the children see 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:

  • food coloring

  • a big clear jar or vase

  • shaving cream

  • water

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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:

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.

This might be interesting for you too: 
- Sherbet STEAM Experiment
- Summer Activities for Kids 
- Toddler Safe Playdough Recipe

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 rainclouds:

  • 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.


  • 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.

I hope you liked this shaving cream rain cloud science experiment  for your children. Don't forget to let me know how your kids enjoyed it. Leave a comment below and add a picture. I love to hear from you!


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!

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