How does land slowly change over time? What better way to understand this concept than with building a volcano? The only difference vs your traditional "creating a volcano" experiment is the way the volcano erupts. To do this, the children will use flour and food coloring in addition to the vinegar and baking soda solution. This gives the lava a great color and also helps it to harden. The children will let the lave set and repeat this process two more times with a different color. When the final eruption takes place, the children can work with their groups to discuss and make conclusions on how land changes slowly over time. The kids love this hands on activity and they learn a very complicated concept in the process.
3rd Grade Teacher, PA