Thursday, January 28, 2010

Jan. 22-29: Rocks!

The students were given their report cards this week, so you should be seeing that at home. Also, they were given new weekly check-in logs for this quarter (this is Week 2, Week 1 should be crossed out, I was too slow).

We finished learning about minerals this week. Students took their rise and stretch quiz, and they did remarkably well. They also did a lab where they were given a bag of unknown minerals and rocks. First they had to separate the rocks from the minerals, then they had to determine which mineral was which using the tests that they've learned about. They used a magnet to find magnetite, they classified minerals by luster (metalic or non-metallic), and they found the hardness of the minerals by trying to scratch a glass slide. They must have been successful at the lab, because they aced the quiz.

For the rest of the week we will be discussing rock types (igneous, metamorphic, and sedimentary) and the rock cycle (weathering, erosion, etc.). They will be expert geologists before long.

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