Science experiments for children – Make rain in a jar. For this experiment they need a glass jar with metal lid, hot water, ice cubes.
Science experiments for children – Make rain in a jar
What to do?
Pour hot water into the jar. Lay the lid upside down on the jar and fill it with ice cubes.
__________________
Science experiments for children – Make rain in a jar
What happens?
The warm moist air goes upward and hits the cold air created by the ice cubes. The water condenses and returns down.
http://mygratitudeattitudes.blogspot.com/
_________________________
Science experiments for children – Make rain in a jar
Another version of the experiment
What do you need?
a glass jar with a metal lid, boiling water, ice cubes, flashlight.
What to do?
Pour about half a cup of boiling water into the jar and screw the lid. Let the children feel the warmth of the pot.
Put ice cubes in a small sheet of aluminum foil and let the children feel that they are cold, then place them on the lid of the jar and see what happens.
The warm, moist air in the jar, will start to become vapor, forming a cloud in the jar. Good lighting with the torch: as with the sunlight when it strikes a cloud, the torch makes the appearance of the steam whiter.
As the water droplets become larger (and thus render more difficult the penetration of light), the steam will begin to look gray. Early in the jar begins to rain.
What happens?
The inside of the jar is like the outdoors. When the moist air of the clouds meets the cold air, the water inside the cloud forms droplets and falls like rain. This process is called condensation.
__________________
Science experiments for children – Make rain in a jar
Other links
