Cognitive experiments with water for preschool children

The research and experimental activities of children are the basis for satisfying their curiosity about the world around them. Interest in the properties of water, soil, air and other natural materials and objects appears in children in the senior preschool age, when the child begins to establish cause-effect relationships, trace the logic of events. You can conduct experiments with water in the process of studying with in a kindergarten or at home. It is important that each child independently tests the method that is shown to him by an adult. Manipulations with water can be repeated several times, until the kid learns the knowledge that he obtained through research.

Experiments with water to study its properties:

1) It is liquid. Show the children how the water is pouring from a tap, from a kettle or from a glass. Offer yourself to pour it from one glass to another. In the presence of children thicken the water with starch, boil a thick jelly. Show that now the water is hardly poured from one vessel to another, and when cooled, you can even take it with a spoon. Ask what else is fluid, and how the children found out. To acquaint with the general name of all substances that pour - liquids.

2) Water can be in different states: gaseous, liquid, solid. Children themselves can pour it into molds and put in a freezer. After a few hours, the children discover that the water has turned into ice. If it is put in water again, it will float to the surface and begin to melt. It can be concluded that ice is lighter than water. Next, bring in the thermos bottle with hot liquid and open the lid. There will be a steam that rises upwards, because He is also lighter than water.

3) Water has no smell and taste. Before each child put a glass of water and offer to sniff it, and then take a sip, evaluate its taste. For comparison, children can try juice or tea, sniff milk or compote. To conclude that it has a taste only if you add something to it: berries, fruit, sugar.

Experiments with water are very simple. More often than not, children themselves begin to explore the properties of the liquid, bringing pieces of snow into a warm room or looking at objects in the water. Older preschoolers begin to ask questions about where the rain comes from, why rivers flow, where the water from the pool goes. In the period of increasing interest in these phenomena, it is possible to conduct several experiments with children, which can be perceived as tricks. This will only help to remember better how people have learned to use fluid and understand the phenomena of nature.

Experiments with water:

1) Pour hot water into a transparent jar and cover it with a piece of polyethylene. In the recess of the lid put a few pieces of ice. You can see that inside the jar a cloud appears: the steam that rises from the hot water and cools on the surface of the vessel, coming in contact with the ice. On the inside of the polyethylene liquid will begin to accumulate and drop downwards with droplets. Children will see in the bank not only the formation of clouds, but also rain.

2) Put a few grape berries into the sparkling water and watch them slowly sink to the bottom. Are more severe. Gradually, on the surface of the grapes, children can notice a lot of bubbles, and the berries will begin to rise to the surface. Explain to preschoolers that they are like submarines that float to the surface, which use the same principle.

The older children become, the more difficult it is to conduct experiments with water, demonstrating both the absorption of water by plants, and measuring the gravity of other objects, immersing them in water. Curiosity and curiosity of preschool children can tell parents what experiments and experiments can still be carried out in the summer using soil, air and liquid.

The properties of water can be studied when visiting the pool, swimming in the salt sea, when growing vegetables in the country. In the senior classes in chemistry lessons, teachers are taught to isolate hydrogen from water, decompose it into elements. And in the lessons of anatomy and biology, students learn that in the human body it occupies a dominant position, because A person by 50-70% consists of water.