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Oobleck

Oobleck. A presentation by Nate Holt October 2005. What Is Oobleck?. Oobleck is a substance we can make by mixing cornstarch and water in the right proportions. Is oobleck solid or liquid? How can you tell? Appearance Feel Let’s make some oobleck to find out!. The Oobleck Recipe.

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Oobleck

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  1. Oobleck A presentation by Nate Holt October 2005 NSF North Mississippi Gk-8

  2. What Is Oobleck? • Oobleck is a substance we can make by mixing cornstarch and water in the right proportions. • Is oobleck solid or liquid? • How can you tell? • Appearance • Feel • Let’s make some oobleck to find out! NSF North Mississippi Gk-8

  3. The Oobleck Recipe • To make oobleck, we need to mix ONE PART water and TWO PARTS cornstarch. • Each pair will receive a teaspoon and a one-eighth cup measuring cup. • 1 tablespoon (Tbsp.) = 3 teaspoons (tsp.) • 1/8 cup (cu.) = 2 tablespoons (Tbsp.) NSF North Mississippi Gk-8

  4. Making Oobleck (continued) • Each pair will receive one-eighth cup cornstarch. How much water will each pair need to make as much oobleck as possible? Which measuring device should you use to measure the water? • Remember these unit conversions: • 1 tablespoon (Tbsp.) = 3 teaspoons (tsp.) • 1/8 cup (cu.) = 2 tablespoons (Tbsp.) NSF North Mississippi Gk-8

  5. Solid or liquid? • Does oobleck LOOK like a solid or liquid? • Does oobleck FEEL like a solid or liquid? • Now that we are through with our oobleck, how do you think we should DISPOSE of it? • Pour it down the drain? • Throw it away in the trash? NSF North Mississippi Gk-8

  6. Not All “Liquidy” Things Should Be Poured Down the Drain! • For instance OIL and GREASE should never be poured down the drain: • When hot grease comes in contact with cold water in drainpipes and sewers, the grease solidifies and can eventually block the flow of water. • This causes a BACK-UP! A sewage back-up… YUCK! NSF North Mississippi Gk-8

  7. Motor Oil Is Even Worse! • In 1995, about 706 million gallons of motor oil ended up in the planet’s oceans. • More than HALF- 363 million gallons- of this oil pollution was caused by people pouring motor oil down the drain! Cleaning up after an oil spill in California. NSF North Mississippi Gk-8

  8. How Can We Properly Dispose of Motor Oil? • Used motor oil can be RECYCLED: • In Oxford, used motor oil can be recycled at: • Autozone, 1901 University Ave. • Express Lube, 1814 University Ave. • Advanced Lubrication Center, 2101 W. Jackson Ave. NSF North Mississippi Gk-8

  9. Recycled Motor Oil Is Then: • Reprocessed and used for/by: • Industrial space heaters • Asphalt plants • Paper mills • Steel mills NSF North Mississippi Gk-8

  10. What Is MERCURY? Hint: We’re Not Talking About the Planet! • Mercury is a silver-colored metal. • When you hear the word “metal,” what do you think of? • Below is a picture of some mercury. What do you notice about this metal? Does it appear to be a solid or a liquid? NSF North Mississippi Gk-8

  11. More About Mercury • Mercury is actually a LIQUID! • Mercury is used in the production of thermometers, barometers, electrical switches, some “neon-type” signs, and dental fillings. • Mercury can be found in coal. When coal containing mercury is burned, the mercury is released into the atmosphere. NSF North Mississippi Gk-8

  12. Coal Power and Mercury Bioaccumulation • Some Mississippi power plants burn coal to make electricity, which releases mercury into the atmosphere. • Mercury then settles on Mississippi waterways and ends up in small fish. • As larger fish eat smaller fish, the mercury BIOACCUMULATES, or increases in concentration, in the larger fish. NSF North Mississippi Gk-8

  13. What Size Fish Do You Eat? • Most of us eat only larger fish, which will contain higher levels of mercury than smaller baitfish. • Because of the bioaccumulation of mercury, there is “Limit Consumption Advisory” in effect at Enid Reservoir for catfish and bass longer than 27 inches! NSF North Mississippi Gk-8

  14. What Can We Do To Minimize Oil and Mercury Pollution? • If anyone in your family changes their car or truck’s oil, ask them to recycle the used motor oil. • Turn off the lights when you leave the room, and turn off other electronic devices when you are not using them. • Remember- just because something looks like a liquid does not mean it can be poured down the drain! NSF North Mississippi Gk-8

  15. What Questions Do You Have? NSF North Mississippi Gk-8

  16. Sources • American Petroleum Institute. No date given. “Used Motor Oil Collection and Recycling.” Accessed 30 September 2005. <http://www.recycleoil.org/Usedoilflow.htm> • Callebs, S.; Gupta, S.; Lavendera, E.; Lawrence, C. and B. Starr. 2 September 2005. “Convoys Bring Relief to New Orleans.” Accessed 10 September 2005. <http://www.cnn.com/2005/US/09/02/katrina.impact/?section=cnn_us> • Gradwohl, J. 1995. “Ocean Plantet: Oil Pollution.” Accessed 30 September 2005. <http://seawifs.gsfc.nasa.gov/OCEAN_PLANET/HTML/peril_oil_pollution.html> • Kelly, J. 2 September 2005. “DEQ Update: Oil-leak near Venice.” Accessed 9 September 2005. <http://www.deq.louisiana.gov/news/pdf/DEQ6pmupdate92.pdf> • Knickerbocker, B. and Patrik Jonsson. 7 September 2005. “New Orleans’ Toxic Tide Will Cause Costly Cleanup.” Accessed 9 September 2005. <http://www.usatoday.com/news/nation/2005-09-07-katrina-water-cleanup_x.htm> • Krutein, W. No date given. Online image. “Huntington Beach, California.” Accessed 30 September 2005. <http://www.photovault.com/Link/Disasters/a/OilSpills/show.asp?tg=DAOVolume01/DAOV01P05_07> • Mississippi Department of Environmental Quality. August 2001. “Mississippi’s Fish Tissue Advisories and Commercial Fishing Bans, August 2001.” Accessed 30 September 2005. <http://www.deq.state.ms.us/MDEQ.nsf/pdf/FS_FishAdvisoriesAugust2001/$File/FishAdvisoriesAugust2001.pdf?OpenElement> NSF North Mississippi Gk-8

  17. Sources • National Energy Policy Development Group. May 2001. “National Energy Policy: Report of the National Energy Policy Development Group.” Accessed 30 September 2005. <http://www.energy.gov/engine/doe/files/dynamic/1952003121758_national_energy_policy.pdf> • Neergaard, L. 6 September 2005. “Water Pollution a Concern in New Orleans.” Accessed 9 September 2005. <http://www.usatoday.com/news/nation/2005-09-06-katrina-health_x.htm> • No author given. 1 April 2003. Online image. “Wet Basement Problems.” Accessed 30 September 2005. • <http://www.statefarm.com/consumer/vhouse/articles/wetbsmnt.htm> • No author given. No date given. “Search Results for Mississippi Used Motor Oil Sites.” Accessed 30 September 2005. <http://mississippi.earth911.org/usa/master.asp?s=ls&cat=9&serviceid=1&type=-1> • United States’ Environmental Protection Agency. 8 June 2005. “TRI On-site and Off-site Reported Disposed of or Otherwise Released (in pounds), MERCURY, By Industry, Mississippi, 2003.” Accessed 30 September 2005. • <http://www.epa.gov/cgi-bin/broker?view=STSC&trilib=TRIQ1&sort=_VIEW_&sort_fmt=1&state=28&county=All+counties&chemical=007439976&year=2003&tab_rpt=1&fld=RELLBY&ONDISPD=Y&OTHDISPD=Y&fld=TSFDSP&OFFDISPD=Y&OTHOFFD=Y&_service=oiaa&_program=xp_tri.sasmacr.tristart.macro> • Winter, M. 2003. “Mercury: Physical Properties.” Accessed 30 September 2005. <http://www.webelements.com/webelements/elements/text/Hg/phys.html> • Zeise, A. 2004. “A to Z Home’s Cool Homeschooling Explorations 4 Kids: Oobleck Recipe.” Accessed 30 September 2005. <http://homeschooling.gomilpitas.com/extras/Gak.htm> NSF North Mississippi Gk-8

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