What are some small experiments on the water? The relevant content is as follows:
1. Artificial rain experiment
The so-called artificial rain experiment involves placing a bowl filled with ice cubes over a constantly boiling container. hot water kettle. Under the confrontation between hot and cold, water vapor will quickly condense into small water droplets and drip, forming artificial precipitation.
2. Pigment Rain Experiment
The raw materials required for this experiment are very simple: open transparent bottles or cups, edible coloring, hand sanitizer foam, and water.
Add half a cup of water into the transparent bottle first, then pour a little foam hand sanitizer to cover the entire surface of the water. Then drop the pigment and you can see the pigment fallsr water in the shape of a column.
This effect is similar to that of precipitation. Foam has an effect similar to clouds, and pigment has an effect similar to dust or water droplets. Only when the pigment accumulates to a certain amount in the foam will it penetrate the foam and fall into the water.
3. Ice Cube Experiment
Ice cube experiment is also something that children love to play. It’s so cool to play with ice cubes in the middle of summer! Keiduo often asks me to pour a bowl of water and freeze it in the freezer so he can observe it and play with it.
While playing with ice cubes, you can let your children observe.
4. Siphon Experiment
The materials for the siphon experiment are also very simple. All you need is a straw and two cups of water.
5. Create a rainbow
Be in a sunny place and letsunlight shining on water droplets or mist. Since a rainbow can only be seen when your back is to the sun, look away from the sun and in the direction away from the sun. When a rainbow appears, it appears more clearly where the background is dark.
The science experiment water bottle fountain uses the principle of atmospheric pressure.
How to use air pressure: When the bottle cap is tightened, the bottle neck is not connected to the outside world, so the air pressure to the inside the bottle is lower than the air pressure outside. The bottle and the air outside the bottle will push the water into the bottle through the small holes. There is internal pressure, so water cannot escape. After opening the bottle cap, the bottle neck is connected to the ex airoutside and the air pressure inside and outside the bottle is equal. The air pushes the water in from the small hole at the bottom and pushes the water out of the bottle. mouth, so the water can flow out under its own gravity.
Steps to the Water Bottle Fountain Science Experiment
Step 1: Fill the plastic bottle with water and tighten the cap.
Step 2: Use thumbtacks to poke through a row of holes under the plastic bottle, leaving a few inches between the holes.
Step 3: Unscrew the bottle cap and water will flow out of the small hole. Tighten the bottle cap and the water will no longer flow.
The atmosphere has weight and exerts pressure on us, which we take for granted or which does not surprise us. However, because it is intangible, colorless and odorless, people often cannot smell it and are unaware of its existence. Actually,Air pressure is an indispensable part of people's lives. The Small Water Bottle Fountain Experiment is a work that makes atmospheric pressure the protagonist.
Atmospheric pressureIt refers to the atmospheric pressure acting on a unit area, which is numerically equal to gravity on a vertical column of air extending upward to the upper limit of the atmosphere per unit area. The international unit is Pascal, or Pascal for short, and its unit. the symbol is Pa. This varies not only with altitude, but also with temperature. Regional differences in atmospheric pressure are one of the direct causes of weather changes and are also an important variable in weather forecasting.