I've seen the same planet colored differently in different photos. Here are the true colors of the planets, with links to some relevant images from NASA spacecraft. (Note that spacecraft photos appearing in the media often have false coloration.) Mercury: gray (or slightly brownish). Mercury has practically no atmosphere, so we just see the rocky surface.
The composition of the human body is expressed in terms of chemicals: 1  Water. 2  Proteins â including those of hair, connective tissue, etc. 3  Fats (or lipids) 4  Hydroxylapatite in bones. 5  Carbohydrates such as glycogen and glucose. 6  DNA. 7  Dissolved inorganic ions such as sodium, potassium, chloride, bicarbonate, phosphate.
Students review the parts of their body. BACKGROUND: The human body is composed of organs that are part of different body systems that allow the human body to work. The design of the body will be explored as well as the different tissues that combine to make the different organs such as the heart and lungs.