Date: 10-09-14 Title: Plant Cells / Looking at Elodea Standard: MS1-LS1-3 Conduct an investigation to provide evidence that things are made of cells or many different types and numbers of cells. Learning Target: I can record detailed, specific observations. Success Criteria: [ ] "Looking at Elodea" WS Do Now: Explain or draw what you expect to see when using a microscope on a plant. Learning Activities: "Looking at Elodea" WS Processing Assignment / Closure: Write one thing you learned today. Write one question you still have.
Date: 10/9/14 (A Day) Title: Plant Cells / "Looking at Elodea" WS Standard: MS-LS-1 3m LT: I can record specific and detailed observations. I can estimate the size under a microscope. Success Criteria: [ ] "Looking at Elodea" WS [ ] Update TOC Do now: *pick up worksheet *Explain or draw what you expect to see when using a microscope on a plant.
One Student - Bring a slide up and tweezers to the table and prepare a wet mount of Elodea leaf. Slide, Elodea leaf (correct side up), Drop of Pond Water, Cover Slip. (5 Minutes) to prepare slide. Set your total power to 100x (10x eyepiece * 10x objective lens = 100x) Limit your microscope time to 1 minute (7 Minutes) focus up and down through the leaf. If you are not looking at the slide... *Sit down *Record your observations for "Part 1: Elodea at 100x." Guiding questions: What do you see when you look at the Elodea? What did you notice when focus up and down through the leaf?
Period 1 Part 1: Elodea at 100x Observations (3m):
Period 2 Part 1: Elodea at 100x Observations:
Period 4 Part 1: Elodea at 100x Observations:
Period 5 Part 1: Elodea at 100x Observations:
Review Estimating Cell Size Field of View and Magnification (p 100x 40x 400x
Review Estimating Cell Size Field of View and Magnification (p 100x 40x 400x
Review Estimating Cell Size Field of View and Magnification (p 100x 40x 400x
Review Estimating Cell Size Field of View and Magnification (p 100x 40x 400x
Period 1 Part 2: Elodea at 400x Observations (3m):
Period 2 Part 2: Elodea at 400x Observations (3m):
Period 4 Part 2: Elodea at 400x Observations (3m):
Period 5 Part 2: Elodea at 400x Observations (3m):
Cell Theory (6:11) https://www.youtube.com/watch?v=4OpBylwH9DU
https://www.youtube.com/watch?v=BB5rvjZzgFU Cytoplasmic Streaming Foss image https://www.youtube.com/watch?v=BB5rvjZzgFU Any other things seen????
Clean Up Place sample back into the Elodea container. Rinse and dry off the slide and cover slip and place back in tray. Processing Assignment (left hand side, under Do Now, page 36)- Write down 1 thing you learned today. Write down 1 question you have.