Light microscopes use light to form an image of a specimen and magnify it. They let us see individual cells and large subcellular structures, like nuclei
Electron microscopes use electrons instead of light to form an image. They have a much higher magnification than light microscopes.
Electron microscopes have a higher resolution than light microscopes.
Resolution is the ability to distinguish between two points, so a higher resolution gives a sharper image.
magnification = image size / actual size
In the magnification formula, the image size and the real size should have the same units
A specimen is 50 μm wide. Calculate the width of the image of the specimen under a magnification of x 100. Give you answer in mm.
A micrometre (µm) is equal to 0.000001 m
A nanometre (nm) is equal to 0.000000001 m
A millimetre (mm) is equal to 0.001 m
A slide is a strip of clear glass or plastic onto which the specimen is mounted
If you want to look at a specimen under a light microscope, you need to put it on a microscope slide first.
Your drawing must take up at least half of the space available
When drawing observations, there shouldn't be any colouring or shading but should have important features labelled.
Remember to include a title of what you are observing + the magnification used