Water cycle experiments for kids 1: One bottle of wrinkle
For this experiment, you will need:
- A plastic bottle with screw cap
Rinse the plastic bottle with hot water and immediately closing ithermetically. Then you put it in the freezer and wait.
The air inside the bottle cools and takes up less space. Now, the air pushes on the outside of the bottle and squeezed ittogether!
Skiers like to take hot drinks onto the slopes. But if you forgetthe thermos overnight in the snow seen on the next day, a nasty surprise. The pitcher has the warm air is cooled and shrunk so:The result is a vacuum. The next morning found only broken glass in the pot.
Water cycle experiments for kids 2: Water Cycle Experiment
Water is never lost - it evaporates rises upward, forming clouds. As rain, snow or hail, it comes back to Earth. With a simple experiment you can “reconstruct” this cycle.
In a large glass (clean and dry) are first stones, then pouredsand and garden soil. As the lowest layer of charcoal can alsobe specified (for molds). Plant use, pour it carefully, and stretchclear plastic sheet over the window sill set. After a short timethe cycle is in motion.
Water cycle experiments for kids 3: The water cycle over land areas
Ages: 5 years, under the guidance of teachers
Goal: to experience to understand the water cycle and
- 1 large glass bowl
- 1 drinking glass
- Earth, sand
- transparent plastic wrap
- rubber band
- small stone
Construction / Instructions:
In a minute as transparent vessel (diameter 30th cm) is filled a thin liquid mixture of soil, sand and water. Soil mixture in the middle of a drinking glass is placed, looking outclearly from the mixture. About the large vessel is entered into a clear film stretched and with the help of a rubber band. In the middle of the cling film is a small stone placed. Important: The plastic wrap should just hang on through the drinking glass of something! finally the vessel is in the sun on a windowsill or a heating provided.
On the inside of the film forming water droplets.Since this is slack, the water drips into the glass.
The water in the glass is clean.
The moisture evaporates from the soil-sandmixture (even at room temperature) - the water is from the air recorded. The air in the glass container is covered warmer than the ambient temperature (greenhouse effect). Meets the warm air saturated with water on the colder plastic wrap,cools the air and is a part of the wateragain. The water condenses on the plastic wrap.
With the trial, the natural water cycle over land areas are illustrated.
Over land surfaces constantly evaporates moisture. The water enriched with warm air rises and meets once or later to colder air masses. This cools the from air and can no longer contained in its moisture. Keep It formed tiny droplets - the air is the cloud. On further cooling, the drops grow so long time until they fall as rain back to earth and close to the natural water cycle.
The absorption of water in air is dependent on the temperature(and pressure). The warmer the air, the
more moisture it can absorb and store. shall cooled with water-laden air, decreases its water absorption capacity, and increases the saturation with water. The temperature at which the water droplets in the air again
condensed, is called the dew point.