PPT-Ch. 3: Chemical and Physical Features of Seawater and the

World Ocean 31 The Waters of the Ocean A The Unique Nature of Pure Water All matter is made of atoms Elements are make from one kind of atom A molecule is two or more different atoms combined. First lecture:. 1. Depth and Pressure . 2. Temperature. 3. Heat. 4. Potential temperature. Second and third lectures:. 1. Salinity. 2. Density. 3. Freezing point, sea ice. 4. Potential density. 5. Isopycnal surfaces . page 133. Physical Change. Any change in size, amount, shape, . or state/phase . of matter.. nothing new is created. Ex.) melting a block of ice, cutting a piece of paper in half. Chemical Change. substances change . perfume evaporating on your skin . perfume evaporating on your skin . physical.  butter melting .  butter melting . physical. wood rotting.  . wood rotting.  . chemical. autumn leaves changing color. Mrs. Lowe . April 2011. Chemical changes . Chemical change . is a change that forms a new type of matter . Chemical property . is a feature of matter that can cause a chemical change. Examples of a different type of matter forming during a chemical change. 1.7. Physical Changes. Physical Change. : the substance involved remains the same, even though it may change state or form. . Examples: . Dissolving – stirring a spoonful of sugar in water. Melting –an ice cube melts. and. Changes. By Jordan Parkinson. What are some Physical Properties?. Appearance – O. utward . or visible aspect of a person or thing. . Color - A. . visual attribute of things that results from the light they emit or transmit or reflect. Blue Color. Blue Color. Physical property. Density. Density. Physical property. Flammability. Flammability. Chemical property- The original substance is fundamentally changed. . Solubility- (dissolves into a liquid to make a solution). ) . Fall, 2016 L. Talley. First lecture:. Accuracy and precision; other definitions. Depth and Pressure . Temperature. Salinity and absolute salinity. Density. Sea ice, freezing point. Talley SIO 210 (2016). The Waters of the Ocean. 1) A . molecule . of water is made of . two hydrogen atoms . and . one atom of oxygen. 2) Water molecules are held together by . hydrogen bonds . (weak and easily broken). 3) The states(phases) of water are . Marine Science Unit 4:. umassmarine.net. Marine Science: Chemical Oceanography . Day 1 – Water Structure and Properties. Objectives:. Explain the structure . of a water . molecule.. What is a polar molecule?. Oceans and Temperature. Ocean surface temperature strongly correlates with latitude because . insolation. , the amount of sunlight striking Earth’s surface, is directly related to latitude.. 1. Ocean currents carry warm water . Navo. Middle School Science. Physical Change. A change in the size, shape, form, or state of matter that does not change the matter’s identity.. Examples:. Play-doh. being sculpted. Ice Cream melting. Changes. The Difference. Physical Change . – . matter changes form . but is still made of the same molecules, typically . reversible. Chemical Change . – a . change in the molecules . occurs, . cannot be reversed. Control of Microbes . Chapter 11. 11.1 Controlling . Microorganisms. A. General Considerations in Microbial Control. 1. . . Desired level of cleanliness. A) Some . methods kill all organisms while others allow varying levels .