Aim of the experiment:
The aim of the experiment is to learn more about how cells look like. And also how do they look like when you put ink on it.
Use a labcoat.
Be very careful with breakable materials (a coverslide, a glass container, etc.
Do not touch break glass.
Carry the microscope with both hands.
Never aim the microscope´s mirrordirectly to the sun light.
Do not put the microscope´s lenses too close to the experiment.
Always hold the microscope slide with the clips on the microscope.
All women have to wear a ponytail.Introduction:
How do onion membrane cells look like when they are magnified, with and without ink?
The single eye cannot see the particles of an onion´s cellmembrane, but the microscope can. Cells make the cell membrane so in this experiment we´ve seen the cells of an onion cell membrane. Cells are the basic unit of life so what we´ve seen is alive.Hypothesis:
There is a huge difference between the membrane cells seen by the unaided eye than the magnified one, with and without ink.
The ink is not well put.
The microscope slide isdirty.
The microscope does not turn on.
The light source doesn´t work.
The microscope wheels are bolted.
The onion is rotten.
The onion cell membrane was broken.
The cover slide brokedown.
The microscope slide broke down.
The membrane folds and wrinkles.
Data collecting and processing:
Put the onion fragment on the microscope slide, put a drop ofwater on it and cover it with the cover slide.
Turn on the microscope.
Put the slide on the microscope and hold it with the clips.
See the onion fragment with the three differentmagnifications and write observations.
When observing: adjust the adjusting wheel in order the cell membrane to be focused to see the fragment.
The onion membrane is very delicate so it...