The Water Planet The Blue Planet Most of the Earth’s surface is covered by water (71%) 97% of this water is salt water 3% of this water is fresh water.
Warm up Convert the following: 24.3 ml to kl 23Mg to cg.
What is life? How is it defined?. Organized structures.
1 Chapter 3 Water and the Fitness of the Environment.
O - - - - - - - - H - H - Water (H 2 O) Water is a polar molecule This means that... A.All atoms have equal electrical charges B.A water molecule is linear,
SEAWATER and the properties of the water molecule.
Biochemistry Chapter 3. Life on Earth began in water and evolved there for 3 billion years WATER AND LIFE –Our cells are composed of 70%–95% water The.
Chemistry of Life Organic Chemistry. Water What do you think makes water so special? Liquid at room temperature Everyone needs it to survive, You are.
Molecular Models Activity ammonia hydrogen monochloride trichloromethane urea propane butane nitrogen triiodidenitrogen triiodide (video)video carbon tetrachloride.
Electronegativity. In a covalent bond between identical atoms eg. H 2 and Cl 2 the electrons are shared equally between the two atoms In covalent bonds.
Advance Biology Fall 2012. Vocab development Anabole- a building up Di- two Endo- inside Exo- outside Glyco- sugar Hydro- water Katabole-