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7th Grade Science

Mr.Kang's Classroom Log 

Wednesday, December 13, 2006

Wednesday 12/13/06

What was done?
  1. We took notes on a Natural Selection demonstration.

What was collected?
  1. Section 5-1 Review Worksheet.

What was assigned?
  1. Completion of the Natural Selection notes.

Daily Science Fact
You may have heard about the practice of taking iodine pills during the threat of a nuclear attack. When a nuclear bomb explodes, one substance it forms is radioactive iodine. If you eat, drink or inhale this isotope, your thyroid gland will concentrate it and this can lead to thyroid damage or cancer. By taking an iodine pill, you saturate the thyroid gland with iodine and prevent it from absorbing the radioactive iodine.

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