Eye Labelled Diagram nuffieldfoundation standard health safety guidanceSee the health and safety notes in each experiment This is general guidance Health and safety in school and college science affects all concerned teachers and technicians their employers students their parents or guardians as well as authors and publishers Eye Labelled Diagram rodsncones blogspot 2014 05 anatomy layers of eye htmlFigure 1 Diagram of layers of tear film labelled with corresponding glands producing each layer From superficial is the lipid layer to the nakedeyeplanetsThe five brightest planets Mercury Venus Mars Jupiter and Saturn have been known since ancient times and can easily be seen with the naked eye if one knows when and where to look They are visible for much of the year except for short periods of time when they are too close to the Sun to observe All of the planets will not normally be visible Eye Labelled Diagram nakedeyeplanets movements htmDescribing the movements an...