One of our favorite activities here at Silly School is mixing baking soda and vinegar. Here we've used little squeezable containers and filled them with vinegar and a few drops of food coloring. We just scattered some baking soda on a tray and let the children explore. The children watched in aww as it fizzed. Some of the children tried mixing their colors together. They noticed that the red and yellow made orange. Who says learning can't be fun!