Preschool Science Experiment – Evaporation

Does your preschooler wonder what happens to rain or snow after a storm? Do they understand about evaporation? With this fun and easy preschool science experiment, they will learn all about evaporation and what happens to rain and snow on hot days.

 

What happens to water in puddles - that water evaporates in air.

That just because they can’t see the salt or sugar in the water, doesn’t mean it’s not there.

That anything dissolved in water will remain after the water is gone

 

 

A clear glass (you’ll need to write on it)

Salt or sugar

Water

A spoon

A pen (or labels if you don’t want to write on your glass)

 

 

Step one: Mix up some sugar or salt water until the sugar or salt is gone.

 

Step two: Have your preschooler taste it. Even though they can’t see the salt or sugar anymore, it’s still there. 

 

Step three: Mark the level of your salt or sugar water with your pen or label. 

 

Step four: Put your cup in a warm place. Every couple of hours, have your preschooler note how the level goes down with your pen or label.

 

 

Over time the water will evaporate and leave the sugar or water crystals behind.