The children's questions are usually quite ingenious and simple at the same time. But for that reason, giving an answer can be an impossible mission for parents. And is that all the doubts that a child can get to pose, to an adult or would go through his head. In Guiainfantil we help you to know a l
The children's questions are usually quite ingenious and simple at the same time. But for that reason, giving an answer can be an impossible mission for parents. And is that all the doubts that a child can get to pose, to an adult or would go through his head.
In Guiainfantil we help you to know a little more the most common questions that children usually ask about water. With these simple answers you can explain to your children the existence of everyday phenomena such as rain or rainbows.
The whys of children on water al L alluvia, the sea, springs, waterfalls, underground water ... Water generates many doubts in children. Here are some questions you can ask yourself about it:
1. Why is the sea water salty?
Seawater is salted by all the minerals that reach it carried by the rivers from the surface of the earth. The rivers dissolve the minerals embedded in the rocks until they empty into the sea where the most abundant mineral is Sodium Chloride, that is, salt.
2. Why does rain form the rainbow?
Everything is due to the principle of Descartes based on the phenomena of refraction and reflection experienced by a ray of light when crossing the water. So that we can see the rainbow, we need two elements: raindrops and solar rays, hence we always see the rainbow on rainy days when the sun appears, since it is a phenomenon that occurs when the sun's rays pass through. the raindrops.
3. Why are our fingers wrinkling in the water?
This curious phenomenon bears some resemblance to tire grooves. It is about the adaptability of the human being to the environment, that is, the skin of the hands and feet adapts to be able to grasp submerged objects with greater ease. The same happens with the tires of cars. The grooves drawn make them more adherent when the road is wet.
4. Why is the sea water blue?
There is a wrong theory that says the sea water is blue because the sky is reflected, but this is not true. Sunlight is made up of many colors and the water is not completely transparent. Due to its composition, the water absorbs the warm colos of sunlight (red, yellow and orange), allowing the green and blue colors to rebound, which are the ones we see reflected.
5. Why do boats float in the water?
Although it may seem incredible that a boat can float in the water, this is because there is a force called 'push' that prevents the boat, despite tons of weight, from sinking. This pushing force was discovered by Aquimedes, who came to the conclusion that every body submerged in a fluid suffers an upward force equal to the volume of water it occupies.