“How Rocks Are Like Legos” We saw and touched all kinds of different kinds of rocks. We learned where extrusive and intrusive rocks are formed and the how that affects the size of the crystals. We made “rocks” out of legos, “salt crystals” out of marshmallows and toothpicks, and tested the hardness of minerals. Thank you, Audra Reagan and Matt Shaw, for opening out eyes to the wonder of rocks.
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