Try to create a rainbow in a way, a simple experiment .

Simple little experiments to make your own beautiful rainbow in a fish tank and mirror at home.

There are many ways to experiment with making rainbows, but here is one of the simpler ones: Materials: - A transparent glass - A small spoon - Water - White ink or food coloring - A piece of paper on one side Steps:

1.Place the cup on a stable tabletop and pour the appropriate amount of water (about 2 3 full). 2.

Add a teaspoon of white ink or food coloring and stir gently. 3.Bend the sunlight line of the paper against the jujube and let the sunlight shine directly on the white paper.

4.Carefully move the cup onto the piece of paper and let the light shine through the mixture of water and ink from the bottom of the cup on the white paper, and observe the rainbow spectrum to appear. 5.

Try moving the cup at different angles and directions to observe the changes in the rainbow spectrum. Note: When performing the experiment, move the cup carefully to avoid spilling the water.

When observing rainbow colors, it is necessary to ensure that the light is fully and evenly illuminated on the white paper, so that the finger changes of different colors can be better observed.

First of all, I prepared the following materials: skittles, disposable plastic plates, water. The experiment began.

In the first step, I put the Skittles in a disposable plastic tray. And in the order of red, orange, yellow, green, blue, and purple, they are arranged in a circle. The second step is to add an appropriate amount of water to the disposable plastic cup.

Step 3: Let it sit there for 10 minutes. One minute, two minutes, three minutes......I suppressed my excitement and waited quietly, and when it was almost ten minutes, I called my parents over to observe the results of the experiment. The whole family looked at the disposable plastic tray and said, "Wow, it worked!"

I shouted excitedly. Mom and Dad said in unison, "Congratulations, you don't have to shout!" ”

After the experiment was done, I wondered why Skittles could summon a rainbow waterfall when added to water. My mother seemed to see through my mind and said, "The principle of this experiment is actually that after the skittle comes into contact with water, the edible coloring in it will dissolve in the water, so you can see the rainbow waterfall." ”

This experiment was an eye-opener for me, as long as we pay attention to our daily lives, we will discover many scientific mysteries!

Rainbow is a dispersion phenomenon in nature that occurs due to the high content of water vapor in the air, and sunlight is refracted during propagation

So the answer is: dispersion (or refraction).

Rainbow (also known as celestial bow, rainbow, rainbow, etc.), referred to as rainbow, is an optical phenomenon in meteorology, which is due to the sunlight shining into the air nearly spherical small water droplets, causing dispersion and reflection and forming an arched colorful spectrum on the sky. Rainbows most often appear in the afternoon or just after the rain when the sky is clear, and from the outer circle to the inner circle, it appears in seven colors: red, orange, yellow, green, blue, indigo, and purple, and its position shifts as the observer's position changes.

Felix Billet (1808 1882) described the higher rainbows, and he described the position of the 19th rainbow and called this pattern"Rainbow Roses"In the laboratory, higher-order rainbows can be observed using brighter light and well-aligned lasers, and Wu et al. reportedly used a similar method in 1998 to reach 200-order rainbows with argon-ion laser beams.

When a rainbow appears on an object on the surface of the water, two mirror arcs from different optical paths complementary may appear on the surface of the water and below the surface of the water, respectively, with slightly different names, if the surface of the water is calm the reflected rainbow will appear as a mirror image below the horizon of the water surface, the sunlight is first deflected by the raindrops before reaching the observer, and then through the reflection of the water surface, the reflected rainbow, at least partially, is often visible, even in small puddles.