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Needed this weekBalloonsOne and two liter bottles Cotton gloves (to handle and protect from dry ice?)Chapter 13, States of MatterFour states of matter you need to know:SolidLiquidGasPlasma

Determining the states of matterThe amount of kinetic energy a substance contains determines its physical state (solid, gas, liquid). The more energy it has, the looser it is bound

States of Matter

http://www.grc.nasa.gov/WWW/K-12/BGP/state.html4Adding Kinetic Energy

http://fitz6.wordpress.com/2012/02/27/states-of-matter/5NoticeDid you notice that the Kinetic energy was added in the form of heat?SolidsSolids stick together and stay in the same position next to each other (Like a class in which all students are seated)LiquidsIn a liquid, the particles touch each other but can move freely, like students in a crowded hallway.GasesIn a gas, the molecules are not in regular contact with each other and bounce off when they hit one another (picture sixth graders in gym)

Gas PressureGas pressure is the results of trillions of molecules banging against each other. The pressure is exerted in all directions at once. This is how a balloon or a tire stays inflated.Gas Pressure

Atmospheric pressureAtmospheric pressure is the pull of gravity on all the gas above us in the atmosphere.A Barometer measures this pressureAt sea level, atmospheric pressure is 760 mm of mercury, on Mt. Everest, it is 253 mm of mercury

http://www.google.com/imgres?q=gas+state+of+matter&hl=en&sa=X&rls=com.microsoft:en-us:IE-SearchBox&biw=1345&bih=542&tbm=isch&tbnid=exH2kJ3DkO2BrM:&imgrefurl=http://www.daviddarling.info/encyclopedia/G/gas.html&docid=6nFpTdJ3OGZoLM&imgurl=http://www.daviddarling.info/images/gas_molecules.gif&w=300&h=300&ei=xPleUdrDK4SI9QSE7IG4Ag&zoom=1&iact=hc&vpx=2&vpy=143&dur=374&hovh=225&hovw=225&tx=90&ty=98&page=1&tbnh=134&tbnw=143&start=0&ndsp=22&ved=1t:429,r:0,s:0,i:12412Barometer

http://onlinephys.com/pressure2.html13Measuring pressureAtmospheres (atm)mm of Mercury (mm Hg)Pascals (Pa)Kilopascals (because pascals are tiny) (kPa)

Note = Dumb ole TV and radio meteorologists use inches of mercury rather than mm or kPa!!! One inch is 25.4 mm760 mm = 29.92 inchesConverting1atm equals760 mm Hg equals101.3 kPa1atm = 760 mm Hg = 101.3 kPa

Swapping units450 kPa X 760 mm Hg = 3400 mm Hg 101.3 kPaNote that 760 mm Hg and 101.3 kPa are the same pressure, so you multiply by one to convertStandardsSTP = Standard Temperature and Pressure273 K (0 Celsius) standard pressure is 1 atm At STP, one mole of gas occupies 22.4 LTemperature and Kinetic EnergyTemperature is the Average Kinetic Energy in a substance

http://www.algebralab.org/practice/practice.aspx?file=Reading_DistributionOfKineticEnergies.xml20Should you need more and better explanations:http://phet.colorado.edu/en/simulation/states-of-matter (needs java)(animation)http://www.chemtutor.com/sta.htm (text)http://www.footprints-science.co.uk/states.htm (animation and text)http://www.youtube.com/watch?v=V9WYweBA6vA (music Video)

More linkshttp://www.youtube.com/watch?v=cBBmdqti_Kg (student project video)http://www.youtube.com/watch?v=vDZhUkp30tE (teacher done music video)ConclusionsAnswers questions 3-5 on page 389. Click the sounds icon for my answers