Tuesday, November 29, 2011

6th grade Homework

6th: We covered a lot of material today. First we checked on the eggs. The corn syrup egg is losing water, while the other eggs are gaining water. We call the movement of water through a cell membrane osmosis. Osmosis is the diffusion of water molecules from an area of high concentration to an area of low concentration. Because it takes no energy, osmosis and diffusion use passive transport. Active transport is movement requiring energy. Then we reviewed photosynthesis and its relationship to respiration. We talked about osmosis occurring during dialysis. We covered briefly mitosis and meiosis and then discussed how cancer is caused by cells dividing too rapidly. Students are to read B46-B65. But the homework is on B55 1-5 complete sentences.

7th grade: We drew and identified chromosomes, centromeres, centrioles and chromatids. (It is pretty bad when the spell check only recognizes 1/4 if those words ) Hopefully that will help the students keep all the "c" words straight. Then we corrected the Oompah punnett squares. Finally we started a short video about genes, traits and many other things that we have been studying.

A note from the school board went home with each student. Milk has gone up to 50 cents. A student is only allowed to get behind four days on paying for lunch. After four days the student can buy an alternate lunch of milk and the main dish at a cost of $1.55. This also applies to reduced lunch students. This alternate lunch will continue for four days. If the student has not made arrangements for their lunch bill to be paid they will be required to bring a sack lunch or go without lunch until payment is made.
This policy will begin December 1st.

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