Make It Rain!
Here's a neat experiment that makes rain in a jar. Plus you get to tell
your parents or teacher what to do! 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 use
the hammer and nail to make 5 dimples on the inside of the metal lid.
Make sure they don't poke holes through the lid, just little
indentations. Then have them boil one cup of water. Tell them to 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.
Now it's your turn. 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.
Shop Windows to the Universe Science Store!
The 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 online store
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