Nature is full of wonders and mysteries, and one of the most beautiful natural phenomena is undoubtedly the rainbow rain.

In this article, we bring you a fun and educational science activity to help kids understand this fascinating phenomenon while having fun. Follow our step-by-step instructions to create your own rainbow rain at home!

Activity 1: Rainbow Cloud

A magical way for your little game expert to get to know the weather. Create your own rain cloud and light up the sky with Glo Pals Light Cubes !

Necessary material

  • Clear container (a large bowl or tub)
  • Some water
  • Shaving cream
  • Food coloring
  • Glo Pal Light Cubes (optional but fun)

Step 1: Fill container with water

Fill the container with water

Step 2: Dip a Glo Pal Light Cube!

Immerse a Glo Pal Light Cube

Step 3: Create a cloud with the shaving cream

Create a cloud of shaving cream

Step 4: Add a few drops of food coloring and watch it rain!

Step 4: A few drops of food coloring and watch it rain!

What just happened? When a cloud in the sky fills with water, gravity (the force by which something is pulled towards the center of the earth) pulls the raindrops from the clouds...just like the "raindrops" from food coloring are drawn from your "cloud" of shaving foam! Science is cool!

Activity 2

Necessary material:

  • 6 transparent glasses
  • Food coloring: red, orange, yellow, green, blue, indigo and violet
  • Paper towels
  • Some water

Step 1: Preparing the colors of the rainbow

  1. Fill the six glasses halfway with water.
  2. Add a few drops of food coloring to each glass, following the color order of the rainbow: red, orange, yellow, green, blue, indigo, and purple.
  3. Mix the dyes well in the water to obtain vivid colors.

Step 2: Creating the Rainbow Rain

  1. Place the colored glasses in a circle on a flat surface.
  2. Fold a piece of paper towel in half, then roll it up to form a bridge between two adjacent glasses. The paper towel must be soaked in the colored water of each glass.
  3. Repeat this step for all the glasses, making sure to respect the order of the colors of the rainbow.
  4. Wait a few minutes and watch the magic happen: the colored water moves along the paper towel bridges and gradually mixes to create the shades of the rainbow.

Scientific explanation of the phenomenon

Rainbow rain is a great way to introduce children to the concept of capillarity. Capillarity is a physical phenomenon that allows a liquid to move up or down along a solid surface, such as the fibers of paper towels.

In this experiment, capillarity allows the colored water to move along the paper towel bridges and mix together to create the shades of the rainbow.

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Rainbow Rain is a fun and educational activity that allows children to have fun while learning important science concepts. This Earth Day, marvel at the wonders of the natural world!

Fred Younan
Tagged: Activités