1. Lesson Starter Draw an animal cell and label the organelles.
Write a list of organelles found in a plant but not an animal.
What is the function of the nucleus?
Why do green plants have chloroplasts?
Describe the cell membrane.

2. Learning Intention To label a microscope
To use a microscope to see cheek cells

3. Microscopes- organelles visible
Cells -too small to see
Magnify
Microscopes- organelles visible

4. Microscopes (copy)
Cells are far too small to see with our naked eye; we use microscopes so we can see the cell’s organelles clearly.

5. Labelling the microscope
The eyepiece lens The part of the microscope we look through- it usually has a magnification of x10

6. Labelling the microscope
The objective lenses Different lenses with different magnifications to allow us to look closer (zoom) at our slides

7. Labelling the microscope
The stage The slide is placed upon the stage

8. Labelling the microscope
The stage clips Holds the slide in place

9. Labelling the microscope
Light source (mirror) Passes light through the slide and specimen

10. Labelling the microscope
Focusing dials Focuses the image to give a clear picture

11. Animal cells Plant + Animal cells We need to STAIN them to see
METHYLENE BLUE

12. Making a slide of cheek cells
Collect a slide, coverslip and bottle of methylene blue
Use a sterile cotton bud to collect some cell from inside your cheek- BE GENTLE
Roll the cotton bud over the glass slide
Put the used cotton bud in the disinfectant
Place 1 drop of meth blue over the cells and place the cover slip on the slide
Look at your slide in the microscope and draw what you see

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