PPT-Properties of Water!

Why Water is Special Why do we study water properties in biology class About 23 of the mass of a cell is water Most lifesustaining reactions occur in water solutions Polarity Polarity describes the distribution of electrons in a molecule. Soap is the sodium or potassium salt of a long-chain fatty acid.. What is Soap?. Sodium Stearate. Because “like dissolves like” the nonpolar end of the soap molecule can dissolve the greasy dirt, and the polar or ionic end of the molecule is attracted to water molecules.. Water. A water molecule (H. 2. O), is made up of . three. . atoms --- one . oxygen. and two . hydrogen. .. H. H. O. Water is Polar. In each water molecule, the . oxygen atom attracts more. than its "fair share" of . Matter. Matter is anything that has . mass. and takes up . space. .. See excerpt from Bill Bryson. Everything around you is made of matter.. Can matter change? If yes, how?. Properties of Matter. A . 21. Physical Properties. Chemical Properties. Physical Change. Chemical Change. Chemical and Physical Changes Brain pop. Physical Properties. can be observed or measured without changing the substance.. p. roducts. Strong Elastic Brittle . Easy to mould Pliable Stretches. Waterproof Insulating Rough. Objective and subjective properties of materials. Objective Properties. These are the physical properties of materials that combine to make a product technically function.. Mrs. . aRusso. 8-1. Matter . Anything that has mass and takes up space.. It is the ‘stuff’ that makes up everything in the universe.. Properties of Matter. Hardness, texture, shape, temperature, flammability. of . Matter. Chapter. 6. 6.1 Matter. Objectives. Define matter and describe its major properties.. Explain how the arrangement of particles in a substance may determine its properties.. Classify kinds of matter based on their properties.. Sections 2.1-2.4, 2.7-2.18. 1. Do Now. 1. How . do we rely or use water in our everyday life. ?. 2. Why . is water so valuable?. 2. Do Now. 1. Why were our results so scattered yesterday?. 2. When we repeat the penny water/isopropanol today, what would you do differently?. Water. A water molecule (H. 2. O), is made up of . three. . atoms --- one . oxygen. and two . hydrogen. .. H. H. O. Water is Polar. In each water molecule, the . oxygen atom attracts more. than its "fair share" of . How do matter and energy interact when waves are generated?. What are the three main types of mechanical waves?. What are properties of waves?. Essential Questions:. Waves. A disturbance that transfers energy from place to place. Discuss the special properties of water that contribute to Earth's suitability as an environment for life: cohesive behavior, ability to moderate temperature, expansion upon freezing, and versatility as a solvent. . Water properties, concentration. , and . speciation. Measured water properties for Process Engineering. Properties affected by dissolved species (pure water value in parenthesis). pH (7.0). Electrical Conductivity (6x10. Intoduction. Salinity and . Chlorinity. . Temperature and . themal. properties of sea water . Colligative. and other properties of sea water . Residence time of constituents in sea water. Sea ice . States of matter. Matter. - the substance all things are made from can exist in 3 states.. Name three gases. Name three liquids. Name three solids. Can mater change its state? . If so how?. . Forces.