1. Need Journal! Please have your journal & pencil ready at the bell
I am writing tardy slips 

2. How does the cell membrane help a cell maintain homeostasis?
MS-LS1-2. Develop and use a model to describe the function of a cell as a whole and ways parts of cells contribute to the function.
Emphasis is on the cell functioning as a whole system and the primary role of identified parts of the cell, specifically the nucleus, chloroplasts, mitochondria, cell membrane, and cell wall. These are visible with a light microscope.

3. Air freshener demo Experience it
Sketch, label, and describe what happened
Air freshener = small molecules (ex. oxygen=O2)

4. Diffusion
Definition
Example

5. Sponge & water demo
Experience it:
Plus, an awesome real world application:
Extension: Sponge City - Berlin

6. Osmosis
Definition
Example

7. Compare:
Diffusion
Osmosis
Find 3
differences

8. Diffusion Osmosis High to Low concentration Compare: Three Differences
1. Membrane/Wall
2. Type of molecule
3. Number in [low]
One major similarity:
???
High to Low
concentration

9. Homeostasis Lab: Create Setup & Data Table

10. Homeostasis Lab: Create Setup & Data Table

11. Homeostasis Lab:. each gummy bear is an animal cell
Homeostasis Lab: each gummy bear is an animal cell what surrounds each animal cell?
Freshwater Saltwater Control???

12. Experimental setup (what can we use for a control treatment?)
1: grab 3 different color Gummy Bears from Sapnas
2: record color/treatment, mass, width, height, etc.
3: grab 3 cups, fill TWO CUPS with water (1/2 full)
4: add salt to ONE CUP of water (3-4 spoons & stir)
LAST STEP!!!
Put one Gummy Bear in each cup.
Place on cart for observations tomorrow.