1. Microscopes Aim To be able to use a microscope draw a scientific diagram of an onion cell.

2. Context Microscopes can be used in Biology, Chemistry and Physics. They are used to look at cells, bacteria, crystal shapes and to find faults in structures.

3. Risk Assessment Risk: Hazard: Control Measure:

4. Equipment Label a diagram of the microscope neatly and clearly. Ensure the work has your name on.

5. Diagram arm - attaches the eyepiece and body tube to the base. base - supports the microscope. body tube - tube that supports the eyepiece. coarse focus adjustment - a knob that makes large adjustments to the focus. diaphragm - an adjustable opening under the stage, allowing different amounts of light onto the stage. eyepiece - where you place your eye. fine focus adjustment - a knob that makes small adjustments to the focus (it is often smaller than the coarse focus knob). high-power objective - a large lens with high magnifying power. low-power objective - a small lens with low magnifying power. mirror (or light source) - directs light upwards onto the slide. revolving nosepiece - rotating device that holds the objectives (lenses). stage - platform on which a slide is placed. stage clips - metal clips that hold a slide securely onto the stage.

9. Theory: Parts of the Cell Aim To be able to label the parts of the cell that you can see. Some Key Words Mitochondria Chloroplast Vacuole Cytoplasm Nucleus Cell Membrane Cell wall

10. Analysis and Evaluation Aim To be able to explain what our results show and evaluate our experiment.

11. Analysis My diagram is of a… The organelles in my diagram are… The job of each organelle is… The organelles found in plant and animal cells are… I could see the organelles because…

12. Evaluation My experiment went… I had problems with … because… My classmates had difficulty with… To improve my experiment I could… My results would be more reliable if I…