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

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Presentation on theme: "NSF North Mississippi Gk-8 Oobleck A presentation by Nate Holt October 2005."— Presentation transcript:

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

2 NSF North Mississippi Gk-8 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!

3 NSF North Mississippi Gk-8 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.)

4 NSF North Mississippi Gk-8 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.)

5 NSF North Mississippi Gk-8 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?

6 NSF North Mississippi Gk-8 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!

7 NSF North Mississippi Gk-8 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.

8 NSF North Mississippi Gk-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.

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

10 NSF North Mississippi Gk-8 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?

11 NSF North Mississippi Gk-8 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.

12 NSF North Mississippi Gk-8 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.

13 NSF North Mississippi Gk-8 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!

14 NSF North Mississippi Gk-8 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!

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

16 NSF North Mississippi Gk-8 Sources  American Petroleum Institute. No date given. “Used Motor Oil Collection and Recycling.” Accessed 30 September  American Petroleum Institute. No date given. “Used Motor Oil Collection and Recycling.” Accessed 30 September  Callebs, S.; Gupta, S.; Lavendera, E.; Lawrence, C. and B. Starr. 2 September “Convoys Bring Relief to New Orleans.” Accessed 10 September  Callebs, S.; Gupta, S.; Lavendera, E.; Lawrence, C. and B. Starr. 2 September “Convoys Bring Relief to New Orleans.” Accessed 10 September  Gradwohl, J “Ocean Plantet: Oil Pollution.” Accessed 30 September  Gradwohl, J “Ocean Plantet: Oil Pollution.” Accessed 30 September  Kelly, J. 2 September “DEQ Update: Oil-leak near Venice.” Accessed 9 September  Kelly, J. 2 September “DEQ Update: Oil-leak near Venice.” Accessed 9 September  Knickerbocker, B. and Patrik Jonsson. 7 September “New Orleans’ Toxic Tide Will Cause Costly Cleanup.” Accessed 9 September  Knickerbocker, B. and Patrik Jonsson. 7 September “New Orleans’ Toxic Tide Will Cause Costly Cleanup.” Accessed 9 September  Krutein, W. No date given. Online image. “Huntington Beach, California.” Accessed 30 September  Krutein, W. No date given. Online image. “Huntington Beach, California.” Accessed 30 September  Mississippi Department of Environmental Quality. August “Mississippi’s Fish Tissue Advisories and Commercial Fishing Bans, August 2001.” Accessed 30 September  Mississippi Department of Environmental Quality. August “Mississippi’s Fish Tissue Advisories and Commercial Fishing Bans, August 2001.” Accessed 30 September 2005.

17 NSF North Mississippi Gk-8 Sources  National Energy Policy Development Group. May “National Energy Policy: Report of the National Energy Policy Development Group.” Accessed 30 September  National Energy Policy Development Group. May “National Energy Policy: Report of the National Energy Policy Development Group.” Accessed 30 September  Neergaard, L. 6 September “Water Pollution a Concern in New Orleans.” Accessed 9 September  Neergaard, L. 6 September “Water Pollution a Concern in New Orleans.” Accessed 9 September  No author given. 1 April Online image. “Wet Basement Problems.” Accessed 30 September    No author given. No date given. “Search Results for Mississippi Used Motor Oil Sites.” Accessed 30 September  No author given. No date given. “Search Results for Mississippi Used Motor Oil Sites.” Accessed 30 September  United States’ Environmental Protection Agency. 8 June “TRI On-site and Off-site Reported Disposed of or Otherwise Released (in pounds), MERCURY, By Industry, Mississippi, 2003.” Accessed 30 September    Winter, M “Mercury: Physical Properties.” Accessed 30 September  Winter, M “Mercury: Physical Properties.” Accessed 30 September  Zeise, A “A to Z Home’s Cool Homeschooling Explorations 4 Kids: Oobleck Recipe.” Accessed 30 September  Zeise, A “A to Z Home’s Cool Homeschooling Explorations 4 Kids: Oobleck Recipe.” Accessed 30 September 2005.


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