Hello friends @steemiteducation, the education of our children is fundamental for us as parents and that is why we always have to look for the best teaching tools that help us transmit knowledge in a practical and fun way. The experiments at home are a very valuable tool that we have to take advantage of, they offer us infinite possibilities that we must use to teach.

Today we will make a super fun experiment and that will enchant the children, since we will make a coin disappear in your eyes!

Before starting the experiment it is necessary that we review a concept with which we will work so that the children understand what we are doing.

What is the refraction of light?

The refraction of light is the change of direction of the light rays that happens after passing these from one medium to another in which the light propagates with different speed. Source

Materials:

• Two glass cups preferably

• Water

• A coin

Procedures of the First Part! We can visualize the currency!

• First we put the coin in the center of the container and then add water. By lowering the position of the eyes and looking from the side of the container we can see the coin without any difficulty.

Procedures of the Second Part! The coin disappears!

• Then we repeated the experiment but placing the coin under the container with water. In this case, when adding water and looking from the same position, the coin disappears before our eyes

What happened?

We see the coin when the rays of light reflected on the surface of the coin reach our eyes.
When we put the coin under the container with water the rays reflected in the coin are diverted when changing medium (when passing from glass to water or water to air) and, looking from the side of the container, no ray can reach our eyes and we can not see the coin. This deviation of light is called refraction.
If we look from above we will see the coin without any difficulty since the light that strikes perpendicularly to the separation surface of two media does not suffer deviation.

Children love to do experiments. With them, while having fun, they learnand ask questions about the world around them. Among its many benefits, scientific exploration feeds the child's natural curiosity, fosters his interest in science, stimulates reasoning and logic, improves his ability to solve problems, increases his self-esteem and prepares them to understand more complicated scientific concepts in the future.To enjoy science is not necessary to have a laboratory, you will be surprised by the amount of experiments that can be done with some home materials. So do not wait any longer, get to work and have fun with your children or students.I hope that this article has been of your interest and help, and I hope you in my next publication!Regards!!!