SMMART SCIENCE: Orange Hissing Cat Spit

 

Disgusting...cat spit.  But very cool for Halloween!

 

This is a Halloween twist on a fun idea that my friend, Julie, had for the new Science Club that we have started up at our childrens' elementary school.  I'll have to tell you about that fun venture soon!

Pour out and smooth out some baking soda onto a plate, pie pan or cookie sheet.

Give your child a teeny cup of vinegar and drop a few drops of food coloring into the vinegar.  Let your child use an eye dropper, or a syringe to suck up a little colored vinegar.  You can even teach your child how to dip a straw into the vinegar and cap the straw with a finger to trap a little vinegar in the straw. 

Release the little bit of colored vinegar into the plate of baking soda... and observe!

Inevitably, the question was asked, "What happens if I pour the baking soda into the vinegar cup?"

Hissss! Hisssss!  Hisssss!