We investigated what rocks are; rocks are solid materials that are made of one or more minerals. We learned there are three different types of rocks; sedimentary, igneous and metamorphic and how each rock forms.

We learned that rain is a form of weak acid and can have a detrimental effect on sedimentary rocks such as limestone. We created our own statues using chalk and used vinegar to represent the rain and observed the effect it had on the chalk. As predicted the chalk began to dissolve. We also conducted a similar experiment using stones collected by the class to see if they reacted with the vinegar.


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