Balloon flight in kindergarten science and technology experiment

Balloon flight in kindergarten science and technology experiment

Teachers are kindling, igniting the fire in children's hearts. The teacher is a stone step, carrying the children to climb steadily step by step. The following is the balloon I arranged for the kindergarten science and technology experiment. Welcome to refer to.

Design intent

Balloons are children's favorite toys. Through this experiment, the children have an intuitive impression of balloon flight, and under the inspiration of the teacher, they have a preliminary understanding of why balloons fly.

Activity purpose

1, Cultivation of scientific and technological interests: Stimulate children's interest in scientific and technological experiments;

2. Cultivation of observation ability: cultivate children's observation sensitivity and persistence, so that children can understand that hot air balloons need to apply external force to fly, while hydrogen balloons can fly without applying any force. So as to perceive the principle that hydrogen is lighter than air.

3. Cultivation of operational ability: Cultivate children's spirit of coordination and cooperation through children's participation in production and operation.

4. Cultivation of thinking ability: through children's observation and discussion of experiments, train children's analysis, generalization and comprehensive ability, and cultivate children's practical consciousness.

material preparation

Hydrogen balloons, balloons that haven't been blown, plasticine, paper clips, plastic clips, paper, double-sided tape, small building blocks.

Activity process

First, guide children to think:

Children's riddle: red and green, long and round, blowing very loudly. Fly as soon as you release it. What is this thing?

Show me the balloon. How to inflate it?

What gas is in the balloon blown up with your mouth? (air)

How to make a hot air balloon fly?

Second, ask the child to operate:

1, each child blows a balloon, ties it with a rope, and then tries to make it fly.

2. Organize children to discuss how the hot air balloon flies. Apply a certain external force, such as patting with your hand, using your head, throwing up, etc. )

Third, observation and comparison:

1, show the hydrogen balloon, and the teacher guides the children to observe how the hydrogen balloon flies. (can fly by itself)

2. Compare hot air balloons with hydrogen balloons. How do they fly?

3. Try how to stop the hydrogen balloon from flying (try to stop the hydrogen balloon in the air with prepared materials).

Tell me what I can do to stop the hydrogen balloon from flying.

Fourth, the extension of activities;

1, know hydrogen, understand that hydrogen can fly to the sky because its specific gravity is smaller than that of air.

2, know the hot air balloon, understand the principle of hot air balloon flying.

After-class evaluation: The children had a good time in this class. In the process of making and operating, they understand the difference between hydrogen balloon and hot air balloon, cultivate their interest in experiments and stimulate their practical consciousness.

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