Ocean101-Ch06-Part2

Ocean101-Ch06-Part2 - 1 CHAPTER 6 - WATER CHAPTER 6 - WATER...

Info iconThis preview shows pages 1–4. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: 1 CHAPTER 6 - WATER CHAPTER 6 - WATER (continued) (continued) Metric Is Beautiful Metric Is Beautiful 100 C 0 C Centigrade Centigrade * 212 F 32 F Fahrenheit Fahrenheit Water Water boils at: boils at: Water Water freezes at: freezes at: *aka the Celsius scale, after its creator, Swedish astronomer Anders Celsius (1742!) Gabriel Fahrenheit, German physicist (who also invented the mercury thermometer), devised his scale in 1714 (so 100F = body temperature) Centigrade Temperatures Centigrade Temperatures 30 is hot, 30 is hot, 20 is pleasing; 20 is pleasing; 10 is not, 10 is not, and 0 is freezing. and 0 is freezing. F = ( 2 x C ) + 30 C = ( F - 30 ) / 2 Approximation (easy way) F = ( 1.8 x C ) + 32 C = ( F - 32 ) / 1.8 Exact formula If you know C & want to find F: If you know F & want to find C: The 3 States of Matter The 3 States of Matter Fig. 6.4, p. 125 2 States of Matter & Bond Strength States of Matter & Bond Strength Gas Gas = Molecules not bonded to one another; move independently. Takes the volume and shape of its container. Liquid Liquid = Molecules loosely bonded to one another; bonds easily broken, so liquids flow. Volume is fixed, but takes shape of container. Solid Solid = Molecules strongly bonded to one another; fixed size and shape. Bend or break with applied force. Properties of Water Properties of Water A. A. The water molecule - The water molecule - Ice, Water, Vapor Ice, Water, Vapor B. B. Density & temperature Density & temperature C. C. Heat & temperature Heat & temperature D. D. Changes of state Changes of state E. E. Refraction, Refraction, light, & sound light, & sound A. A. The Water Molecule The Water Molecule Element Element = A substance composed of identical particles that cannot be chemically broken down into simpler substances (e.g., hydrogen) Atoms Atoms = The particles that make up elements. Made of protons (p + ), neutrons (n o ), electrons (e ). Molecule Molecule = A group of atoms held together by chemical bonds (e.g., O 2 gas) Compound Compound = A substance that contains 2 or more different elements in fixed proportions (e.g., water = H 2 O) Ion Ion = A charged particle (e.g., H + or O 2- ) The Water Molecule The Water Molecule If water werent polar, it would freeze at-90C (-130F) and boil at -68C (-90F). And it wouldnt be nearly so good a solvent (dissolver of salts etc). 3 The Water Molecule The Water Molecule The Water Molecule The Water Molecule (ice in glaciers & polar ice caps) (oceans, rivers, & lakes) (water vapor in the atmosphere) Strongly bonded Loosely bonded Not bonded ! Melting ! ! Evaporation !...
View Full Document

Page1 / 13

Ocean101-Ch06-Part2 - 1 CHAPTER 6 - WATER CHAPTER 6 - WATER...

This preview shows document pages 1 - 4. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online