Science stuff about refraction

The Index of Refraction was similar in each given medium and among the three mediums. This is obvious because (for example) in water, the indexes are all within 1.3 and for all three of the mediums there is a small range of 1.3-1.5 for the Index of Refraction.
A light ray travelling from air to water will refract towards the normal more than a light ray travelling from water to air would. A light ray travelling from air to vegetable oil will refract towards the normal more than a light ray travelling from air to water would. A light ray travelling from air to acrylic will refract towards the normal more than a light ray travelling from air to vegetable oil would. Therefore, the higher an Index of Refraction is, the more the refracted light ray will bend towards the normal.
The cell theory states that: all living things are made up of one or more cells and their products, the cell is the simplest unit that can carry out all life processes, and all cells come from other cells; they do not come from non-living matter. This theory is the base foundation of biology; everything to do with biology is in some way related to this theory.
All cells have DNA, cytoplasm, and a cell membrane. DNA is necessary to perform mitosis because the cell must make an exact duplicate of itself. Cytoplasm is the jelly-like material that holds all other organelles within the cell. The cell membrane is a protective barrier which allows specific substances in and out of the cell.
Although plant and animal cells have some of the same organelles, they are unique in many ways. For example, plant cells are usually a rectangular shape whereas animal cells are more circular. Also, both animal and plant cells have vacuoles present. Plant cells have only have one vacuole which takes up the majority of the cell because it is responsible for providing internal support for the rest of the cell and because it must store important nutrients, dispose of waste and protect the rest of the cell (Davidson, Michael). Plant cells also have a cell wall to protect the cell from any injuries. Chloroplasts are not found in animal cells because animal cells do not make their own food; plant cells do.
During this lab, plant and animal cells were observed under a microscope in order to analyze and compare the differences and similarities between the two types of cells.