Microscopy

• 1.

  Peel off epidermal layer of an onion
• 2.

  Mount onto the microscope slide with a drop of water using a pippete
• 3.

  Use two drops of iodine solution to stain the cells
• 4.

  Put the cover slip on top trying to avoid air bubbles
• 5.

  Remove excess stain
• 6.

  Place slide on stage
• 7.

  Turn the nose piece to lower power objective
• 8.

  Set up microscope
• 9.

  Look into the eyepiece using the coarse adjustment knob to move the stage away until it comes into focus
• 10.

  Turn the nosepiece to a higher power objective
• 11.

  Repeat and turn fine adjustment knob to put into focus
• 12.

  Make a labelled drawing of the cell