Quiz 3 - Y7 - Microscope functions (After)

1.   Describe the function of the revolving nose piece

• To move the stage

• To increase the amount of light

• To clean the sample

• To change the magnifying power

2. Why are stage clips used?

• To cut the sample

• To hold the glass slide in place

• So the stain doesn't go everywhere

• To help move the stage up and down

3. After your wet mount is created, where on the microscope is it placed?

• On top of the stage

• On top of the base

• On top of the stage clips

• Directly on top of the light source

4. Describe the purpose of the coarse focus knob

• To rotate the lenses

• To move the stage in large increments (steps)

• To move the stage in small increments (steps)

• To increase or decrease the amount of light

5. Why is it important not to touch the surface of the onion cells, the glass slide or cover slip?

• Your fingers get smelly

• You will always cut yourself

• To prevent your fingerprint getting on the sample

• It is dangerous