Experimental principle of upright toothpick

The experimental principle of standing toothpick is to realize the "standing" of toothpick in water by using the principle of surface tension of water and balance of center of gravity of toothpick.

The standing toothpick experiment is a very interesting physical experiment.

The experimental steps are as follows:

1. Prepare a glass of water, a plate and a small toothpick.

2. Put the toothpick in water and soak it completely.

3. Put the toothpick on the plate again.

The experimental principle is as follows:

1, toothpicks are less dense than water, so they will float in the water.

2. When the upward buoyancy of toothpicks in water is equal to the downward gravity, toothpicks will keep balance.

3. When the toothpicks are soaked, the surface tension of water will form a water film between each toothpick, thus pulling the toothpicks to form a whole, so that the toothpicks can stand firmly on the plate.

The role of small scientific experiments

Scientific experiments play a very important role in education. They can help children better understand the basic concepts of science and stimulate their curiosity and enthusiasm for exploration. Small scientific experiments can help children understand scientific principles and natural phenomena by letting them operate by themselves, thus improving their scientific literacy.

The specific functions of scientific experiments can be summarized as follows:

Cultivate observation ability: Small scientific experiments often require children to carefully observe experimental phenomena and find scientific laws from them. This helps to cultivate their observation ability and analysis ability.

Improve hands-on ability: Most small scientific experiments need children to operate by themselves. Through hands-on practice, they can better understand scientific knowledge and improve their hands-on ability.

Cultivate thinking ability: Small scientific experiments can help children exercise their thinking ability. For example, they can explore through experiments, learn how to solve problems and discover scientific laws from experimental phenomena.

Cultivate cooperation ability: In some small scientific experiments that need cooperation from many people, children can learn how to cooperate with others, which is also very helpful for their social skills.

Broaden the horizon of knowledge: through scientific experiments, let children know that science is in our lives. Science is not mysterious, but around all aspects of our lives.