Hello friends of @steemiteducation, taking advantage that our little ones are very curious and they like to experiment, to know new things and at the same time to have fun, we are going to carry out some Home Experiments that will help us to satisfy that curiosity and at the same time we take advantage of the moment to share with them and educate them.

Today we will be doing some very fun experiments that will facilitate the understanding of many concepts related to energy, such as its transfer and conservation.

So before starting the fun study some basic concepts:

What is energy?

When looking around you can see that plants grow, animals move and that machines and tools perform the most varied tasks. All these activities have in common that they need the energy contest.

Energy is a property associated with objects and substances and manifests itself in the transformations that occur in nature. Source

Principle of Energy Conservation:

The Principle of conservation of energy indicates that energy is not created or destroyed; it only transforms from one form into another. In these transformations, the total energy remains constant; that is, the total energy is the same before and after each transformation. Source

Yes now!! let the fun begin with the experiments:

Energy transfer experiment with two balls

Have fun sending a ball through the air, surprise your friends and learn a lot of things about energy. It is undoubtedly a very simple experiment but enormously didactic.

Materials:

• Two balls, one big as basketball or soccer and one as small as ping pong or tennis. We worked better with the combination of football with a rubber that my youngest son had.

• An outdoor place. This experiment can not be done at home. The small ball is shot through the air reaching a considerable height.

Process: 1st part of the Experiment

• Drop the two balls, separately and from the same height. Observe the height they reach when bouncing.

Process: 2nd part of the Experiment

• Now place the small ball on the big one holding one with each hand and let them fall at once.
  

• Require a little practice, do not worry if you do not get the first time.

• Observe the bounce and run to find the small ball to repeat the experiment.

The small ball goes off !!

What has happened?

The Energy Conservation Principle says that energy is neither created nor destroyed, it only transforms from one form to another.

We are going to study the energy transformations that take place when a single ball is dropped to the ground. 1st Part of the Experiment

Before starting to fall, the ball has gravitational potential energy. This form of energy is the one that has an object because it is located at a certain height. It is defined as the product of the weight of the object by the height it is at,

Ep = Weight x height. Therefore, the higher the height and weight, the greater the gravitational potential energy.

When falling it loses height and therefore the gravitational potential energy decreases. As energy is neither created nor destroyed, it means that gravitational potential energy is transformed into another form of energy, kinetic energy, which is the energy that objects have in motion. The kinetic energy is also going to be transformed into:

• Heat, due to the friction of the ball with the air while it is falling;

• Sound, when doing bang! against the floor;

• Heat due to friction with the ground at the moment of impact;
  energy to deform the ball when hitting the ground. This is the potential elastic energy and is responsible for the rebound;

• Heat due to the deformations produced in the ball.

After the crash, the ball regains its shape and goes up, bounces. The potential elastic energy has been transformed into kinetic energy and this, as the ball goes up, is transformed into gravitational potential energy and heat due to friction with air.

With all these transformations it is impossible for the ball to bounce to the same height from which it was dropped.

Now let's see what happens when the two balls fall together, the small one on the big one. 2nd Part of the Experiment:

As you can see, the big ball reaches a lower bounce height than when we dropped it alone. However, the small ball shoots out and reaches a much higher height, which proves that the big ball transfers part of its energy to the small one. The big ball collides with the ground, bounces and hits the small one yielding part of its kinetic energy. This additional energy is very large compared to the energy that the small ball possesses and sends it through the air at full speed.

Children love to do experiments. With them, while having fun, they learn and 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!!!

• Pages Reference:

• http://www.biodisol.com/biocombustibles/la-energia-que-es-la-energia-fuentes-de-energia-tipos-de-energias-energias-renovables-energias-contaminantes/

• http://newton.cnice.mec.es/materiales_didacticos/energia/conservacion.htm?3&1