Real World Lab-

Use what you have learned about microscopes to-

1. View and sketch the Letter "e" slide at all three levels of magnification-

- be sure to label your sketches according to total magnification
- take an image of your sketches and post it here:

2. View the Colored Threads Slide:

- Describe how/why turning the fine adjustment allows you to observe the threads at different depths.

(Think about how the stage moves up and down into different planes of view as you focus the slide)

Pond Organisms- (Single-celled Eukaryotes)

3. Look at a drop of the pond organism Paramecium using the well slides.

- What are the protrusions coming out of the paramecium?

Add some yeast stained with Congo Red solution- and observe.

- Describe how the Paramecium eats the yeast cells

Paramecium eating pigmented yeast- https://www.youtube.com/watch?v=l9ymaSzcsdY

How a Paramecium Eats- https://www.youtube.com/watch?v=sn3MTYNe8mM

4. Look at a drop of "mixed algae" sample

Use Google Image "Algae": to identify four organisms you observe in the algae mix-

- What is a major characteristic of these organisms-

5. Look at a drop of the "mixed protozoa" sample

- What is a major characteristic of these organisms?

6. Look at a drop of the "volvox" sample

- Use Google to draw an image of a Volvox colony.

7. Use the following videos to assemble a descriptive list of 20 kids of microscopic life

The Diversity of Protists- https://www.youtube.com/watch?v=Ln69k7LyTsU

Quick Pond Water Video- https://youtu.be/mXqyCNAYrH4?t=38

Elodea in freshwater vs saltwater: https://www.youtube.com/watch?v=OtPaPbVBMbM

Real time video when Elodea Cells in saltwater- https://www.youtube.com/watch?v=XTQhaCvlWeo

Attachment:- Bio_Lab.rar