The highlight of the day, for sure, was making volcanoes. We learned that igneous rocks are formed from molten magma inside the earth. The easiest way for the kids to remember this was to build volcanoes! So the kids were divided into four groups and each group built and exploded their volcanoes.
Volcano Recipe
4 cups flour
2 cups salt
1 1/2 cups water
1 T cooking oil
empty 16oz water bottle with the top cut off
white vinegar
a few drops of liquid dish soap
red and yellow food coloring
2 T baking soda
Make the salt dough with the first 4 ingredients. Mix all 4 ingredients together. You may need to add a little more water or a little more flour for the right consistency. Place the empty water bottle in the middle of a tray or pan. Using the salt dough, mold a volcano around the bottle. Fill the water bottle about half-way full with vinegar. Add 2-4 drops of food coloring. Add a few drops of dish soap. When you are ready for the volcano to errupt, add the 2 T of baking soda. Look out!
