Frequent question: What is the science behind the Rainbow rain experiment?

In this experiment, the shaving cream slowly absorbs the colored water. Once the shaving cream becomes too full, the colored water drips its way out into the water. Rain clouds do the same thing! As the clouds absorb water and get full, they begin to swell and it starts to rain!

What is the science behind cloud in a jar?

The warm water vapor mixes with air and smoke particles. It rises inside the jar and then cools when it comes near the tray of ice. As the water vapor cools, it condenses into very tiny droplets on the smoke particles. When enough condensation occurs, we see it as a cloud.

What is the role of the food coloring in the rain formation?

Food coloring is denser than vegetable oil, so when the emulsion is introduced to a body of water, the drops gradually trickle down to the oil-water border. When the drops reach the water, the colorful storm begins.

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How are clouds formed science project?

In our experiment, the warm water in the jar caused the air inside the jar to heat up. When this happened some of the water evaporated into the air. This evaporation caused water vapor in the jar. … The water vapor in the cooling air then condensed onto the particles of hairspray, forming a cloud in the jar!

What kind of mixture is formed when you mix food coloring and water explain?

In this experiment, different solutions are made by mixing water with different colors and amounts of food coloring. Students should notice that once the water and colors are mixed together, the liquid looks the same throughout. It is a solution—a homogeneous mixture.

What happens to the food coloring as it is dropped in each jar with water?

The food coloring has a slightly higher specific gravity, or relative density, than water, so before it has time to diffuse, it tends to sink in the water. When the water is cold, and the diffusion rate is slower, more of the food coloring stays together in a plume falling to the bottom of the container.

How do you make a rainbow water experiment?

The Rainbow Walking Water Experiment For Kids

  1. Fill the 1st, 3rd, 5th, and 7th cup halfway with water.
  2. Add five drops of red food coloring to the 1st and 7th cup.
  3. Add five drops of yellow food coloring to the 3rd cup.
  4. Add five drops of blue food coloring to the 5th cup.

How are rainbows formed in nature?

A rainbow is caused by sunlight and atmospheric conditions. Light enters a water droplet, slowing down and bending as it goes from air to denser water. The light reflects off the inside of the droplet, separating into its component wavelengths–or colors. When light exits the droplet, it makes a rainbow.

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What is the role of the water in the experiment rainbow on the wall?

The water bends, or refracts, the light. As the light bends, it separates into the colors of the rainbow… red, orange, yellow, green, blue, indigo and violet.

How do you make rain clouds experiment?


  1. Fill a clear cup with water.
  2. Add a layer of shaving cream.
  3. Add several drops of food coloring.
  4. When the cloud gets too heavy, the drops fall through as rain! Explain to your child that when water droplets grow heavy in the sky, gravity pulls them down from the clouds as rain, just like in the experiment.

How do you make a rain cloud in a jar experiment?

How to Make a Rain Cloud in a Jar

  1. Add a few drops of food coloring gel for each color (red, orange, yellow, green, blue, purple) into a small bowl for each color. …
  2. Fill your vase or mason jar about 3/4 full of water.
  3. Add shaving cream on top.
  4. Now you can start dropping your “raindrops” into the vase or jar.

How do you make a cloud in a bottle experiment?

How to:

  1. Pour a little bit of water into the plastic bottle.
  2. Put the cap back on, but leave it open.
  3. Light the match, then blow it out so it smokes.
  4. Suck the smoke into the bottle by squeezing the bottle gently a few times.
  5. Close the cap.
  6. Squeeze the bottle and then release it.
  7. Repeat step 6 several times.