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Precipitation
Make It Rain!
Here's a neat experiment that makes rain in a jar. You will need a
parent or teacher, a jar with a metal lid, 1 cup of water, a hammer, a
nail, ice cubes, and salt.
Have your parent or teacher in the room to make sure you don't get hurt!
Use the hammer and nail to make 5 dimples on the inside of the metal lid.
Don't poke holes through the lid, just little
indentations. Then boil one cup of water. You can either do this on
stove in a pot or use a bunsen burner. Please use pot holders so you
don't burn yourself!
Pour the boiling water into the jar. Place the metal lid upside down on top
of the jar, completely covering the mouth of the jar. Place 3-4 ice cubes
into the lid. Add a little bit
of cold water and a pinch or two of salt and stir. Make sure the mouth
of the jar remains completely covered by the lid.
Wait a few minutes and watch as drops of rain start to fall from the lid
to the water below.
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Fall 2009 issue of The Earth Scientist, which includes articles on student research into building design for earthquakes and a classroom lab on the composition of the Earth’s ancient atmosphere, is available in our
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