Today we reviewed; tomorrow we SWYK. Some of you need to finish explaining why ENERGY would fit perfectly in a trio with photosynthesis and chloroplasts as well as respiration and mitochondria BUT NOT SO WELL with diffusion and osmosis (explain on back of Respiration Lab page). Good news is you can use your notebook for tomorrow's SWYK (review the past few weeks' work!) but that means a LOOOOONG SWYK!
Today we explored how energy is stored in food (an almond) and then can be released to do work (boil water!). Some of us didn't have water boil BUT we sure saw an increase in temperature. Fun! Finish the questions tonight and tomorrow we shall review energy for the SWYK on Wednesday.
Today we used assorted chocolate chips to represent atoms of carbon, hydrogen, and oxygen and discovered just how the two energy equations of photosynthesis and respiration are opposites of each other! Fun (and delicious). We also discussed fermentation (if you missed class you can PRINT THESE NOTES and put them on page 93 of your notebook AND add the answers to the p. 53 End of Section Questions 2 a, b, and c to yesterday's respiration questions). Finally, we turned in our notebooks for a midterm notebook check. Monday we will check planners, review the energy processes with a lab, and prepare to act like a plant cell!
Today we explored cellular respiration (we will discuss fermentation tomorrow). If you missed class today you can PRINT THESE NOTES ON RESPIRATION for your notebook page 91 (check with me or a neighbor for what to add) AND answer the End Of Section Questions p. 53 1 a, b, c, and d on page 92 of your notebook (read the section first...). Use complete sentences again! Tomorrow we explore the opposites as well as discuss what happens when you don't have enough oxygen to burn the sugar (fermentation).
Today we explored photosynthesis (we also reviewed food webs and food chains). If you missed class today you can PRINT THESE NOTES for your notebook page 89 (check with me or a neighbor for what to add) AND answer the End Of Section Questions p. 48 1 a, b, c, 2 a, b, and c on page 90 of your notebook (read the section first...). Be sure to use complete sentences! Today energy in; tomorrow energy out.
Today we acted like a cell ... but this time we better understand the processes to move water, oxygen and carbohydrates into the cell (diffusion and osmosis)! We also reviewed food chains, food webs and the energy pyramid since this week our focus is on energy processes: photosynthesis, respiration, and fermentation. We are nearly halfway through the school year. Notebook collection on Thursday (are you ready?).
Today we reviewed the processes involved with transport into and out of cells and we took a SWYK about diffusion and osmosis. Next week we will discuss energy energy energy. Be sure to finish up your lab!!!
Today we measured the mass of our eggs and saw osmosis really worked! IF YOU WERE ABSENT you will need to calculate the percent change of the eggs AND answer conclusion questions using complete thoughts in your notebook page 87 (88 if needed):
1. Did water move across the membrane as you expected?
2. How did this experiment demonstrate osmosis (aka diffusion of water)?
3. How does this activity explain why our fingers and toes get pruned and swollen when we soak in the bathtub too long?
4. How does this activity explain why drinking very salty ocean water is unhealthy and would damage our cells?
Tomorrow we SWYK on your understanding of transport across selectively permeable membranes (diffusion, osmosis, passive and active transport). We are ready to discuss energy in cells next week!!!
Today we measured the mass of eggs before placing them in either distilled water or Karo syrup in order to view the effects of osmosis. If you missed class today you will need to copy THESE DETAILS INTO YOUR NOTEBOOK on page 86. Tomorrow we will measure the mass change and conclude the lab. We also will explore the iPad cell membrane app once again (we started exploration today). Membrane SWYK Friday.
Today we explored how the gummies changed (they got BIGGER) and we added notes about passive and active transport (textbook page 36 ... can print THESE NOTES and attach them to page 85 of your notebook) ... tomorrow we EGGSplore osmosis with an investigation (ha ha ... pun intended!). GUMMY WORK HERE
RETIRED Science Teacher
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