Science weekly update 4/2

• This past week, we investigated the cell membrane by doing a “Rubber Egg” experiment.  We changed the liquid surrounding the egg and saw what happened to the egg’s circumference.  We are investigating cell parts (organelles) and what these parts do for the whole cell.  Cell projects were given back to students and student are highly encouraged to make corrections on it to improve their grade.  Grades have been entered into powerschool for it but email me directly if you’d like information about your student.  This upcoming week, students will investigate two other cell parts, the mitochondria (powerhouse of the cell) and chloroplasts (solar panels in plants.)  We will do an experiment using yeast to show cellular respiration.   Students should expect a test at some point next week.  Students are encouraged to meet with me after school or at lunch time to help them prepare for it.