The Week

This week we leared about crystals and rocks. We did an experement wit cryatalization to see if our class hypothisis of crystals form biger when a rock cools slower than faster. In our experement we had moth balls and we melted them... We put them in different cups in diffrent cooling places. One in a cool area where that would resmeble where the rock would cool faster. Another in a room temp. area to see a mix of cool and warm and lastly a hot area to show the rock cooling faster. the next day we saw that the cooler area had tiny crystals the area of room temp. had a decient sixe crystals lastly the warmer area had the biggest cryatals. So we proved our hypothisis correct.. Lastly in the week we began a lab on rocks and trying t distinguish one type from the other. Some trays had the same types. Some rocks wrer very light some crystaly, some layerly. We've yet to finish it.