Mother's Day idea. I love this idea! And Walmart's store brand canning jars have no logo. Just clear glass. But--my kids are 10 and 12. Their hands are too big. :( This example was kindergarten and first graders. So don't wait. Do it while your children's hands are small enough! :)
Another Pinner said: This kept my 2 year busy for an entire hour and my 4 year old busy for 2 hours! YAY! Drop vinegar tinted with food coloring onto a pan filled with baking soda. Sheer minutes of colorful fizziness!!... Pretty sure we will be doing this soon! GENIUS!