Creating a Volcano using Playdough

 Today we created playdough volcanoes, using baking soda and vinegar eruptions.  We taped a plastic cup to a piece of cardboard and put baking soda and vinegar into the cup.  After it had "erupted" we marked where the "lava" had flowed to.  We dried up the "lava" and placed a layer of playdough over where the lava had been.

We then erupted our volcano with more baking soda and vinegar.  Again once it had erupted we marked where the "lava" had flowed to.  We dried the "lava" with paper towels and placed a layer of different coloured playdough over the area the "lava" had flowed.

We then erupted our volcano one more time and marked where the "lava" had flowed.  After drying the "lava" we used another different coloured playdough to cover the area where the "lava" had been.

This enabled us to make a volcano with three different layers of lava.  We then used clear straws to take a core sample of the volcano - just like real scientists do!