Fill each pan with water to about 2/3’s capacity. Place the pans on your freezer shelf, then wait for the water to freeze. After the water has turned to ice, set your pans side by side, and choose one to sprinkle with sea salt.
The salted ice will begin melting immediately. This is very similar to the way that our cities brine roads in anticipation of a snow or ice event. The science behind this method? Salt lowers the freezing (and also melting) point of water; therefore, the outside temperature must decrease significantly in order to maintain the salted ice.
Paint your stir stick, if desired (we used white paint for our snowman).
Create a base line a couple of inches above the bottom of the stir stick to mark zero inches. From there, use your ruler to mark off each inch going toward the top of the stir stick.
Decorate your measuring stick as desired.
Once your measuring stick finishes drying, find a nice open spot that will receive the most snow. Press your measuring stick in the ground up to your base line.
Snow Stick in the Ground
As the snow falls, periodically check on your measuring stick. We’d love to see how much it snows in your area, so please take pictures and share on the Greensboro Science Center’s Facebook page: https://www.facebook.com/GreensboroScienceCenter!