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Science fair yoona_son_11th

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clean dirty pennies with a solution of vinegar and salt

clean dirty pennies with a solution of vinegar and salt

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  • 1. CLEANING PENNIES WITH VINEGARScience FairHanAl American SchoolYoona Son 11th
  • 2. MATERIALS Dirty Pennies Vinegar Salt Paper Towel Bottle
  • 3. HYPOTHESIS Ifthe dirty pennies are washed with the solution of vinegar and salt, would it be clean?
  • 4. PROCEDURES 1. Put vinegar and salt into a bottle. 2. Add dirty pennies. 3. Shake. 4.Take the pennies out. 5. Rinse them in water. 6. Rub them with paper towel.
  • 5. CONCLUSION Indeed, it cleans. I also found out that it works with coke.
  • 6. PHOTOS Haga clic para modificar el estilo de texto del patró  Segundo nivel ▪ Tercer nivel ▪ Cuarto nivel  Quinto nivel
  • 7. REFERENCES AND EXAMPLES 1 Pittcon Orlando 2012 Feria de ciencias de laboratorio, Florida, USA Fechas: 11.03.2012 - 15.03.2012 Localización: Orlando, Estados Unidos - USA. Hoteles para ferias y congresos en: Orlando, Estados Unidos - USA. Sector: Científicas Tags: Tecnología. Recinto: Orange County Convention Center (OCCC) Página web: www.pittcon.org/ Pittcon 2012 la conferencia y feria de gran importancia mundial dedicada a la Ciencia y Laboratorio tendrá lugar en Orlando del 11 al 15 de marzo de 2012 Pittcon es la conferencia anual y exposición de la ciencia de laboratorio más grande del mundo . Pittcon 2012 ofrecerá lo último en tecnología e instrumentación de más de 950 expositores, un variado programa de Técnico de más de 2.200 resúmenes de ponencias técnicas, más de 100 cursos cortos para mejorar su experiencia educativa, y sesiones de red que proporcionan la oportunidad de intercambiar ideas innovadoras con los científicos de todo el mundo.
  • 8. REFERENCES AND EXAMPLES 2 IUFOST 2012 Brasil: Congreso Mundial de Ciencia y Tecnología de Alimentos Fechas: 19.08.2012 - 23.08.2012 Localización: Salvador de Bahía, Brasil. Hoteles para ferias y congresos en: Salvador de Bahía, Brasil. Sector: Alimentación - Gastronomía Tags: Alimentos, Tecnología. Página web: www.iufost2012.org.br IUFOST 2012 Brasil: Congreso Mundial de Ciencia y Tecnología de Alimentos se celebrará en la ciudad de Salvador, Brasil, del 19 al 23 de agosto de 2012. IUFOST 2012 Brasil: Congreso Mundial de Ciencia y Tecnología de Alimentos pondrá de relieve los últimos conocimientos y avances en diversos sectores de la alimentación la ciencia y fomentar el debate y la formulación de soluciones científicas a los problemas mundiales de alimentación. El 16 IUFoST Congreso Mundial de Ciencia de los Alimentos y Tecnología, previsto para agosto 19 a 23, 2012 en Salvador, Brasil es de suma importancia y se considera una gran ocasión para América Latina, ya que será un evento pionero en el siglo 21 como así como la primera en la América del Sur. El tema será Los desafíos para el siglo 21.
  • 9. SIMILAR EXAMPLES ONLINE 1 Experiments with Baking Soda and Vinegar By Cathy Rigden , eHow Contributor Print this article Experiments with Baking Soda and Vinegar If you are looking for some fun, educational and inexpensive things to do with your kids during the summer or after school, all you need is some baking soda, vinegar, a few supplies and some ideas for experiments. Related Searches: Kids Experiments Fun Experiments Chemical Reaction  Because of the chemical properties of baking soda and vinegar, when they are combined they give off carbon dioxide gas and water. A Baking Soda Rocket  Take a film canister and pack it full of baking soda, then add 2 tsp. of vinegar. Put the lid back on and set it upside down on the ground and stand back. It will pop up into the air.
  • 10. SIMILAR EXAMPLES ONLINE 2 Materials you will need:• Oil • Sink • Funnel • Vinegar • Paper towels • Blue food coloring • 1/2 cup, measuring cup • Small, clear plastic drinking bottle with screw lid Steps: 1. Remove the top from the clear plastic bottle (keep the lid). 2. Pour out ½ cup vinegar into the measuring cup. 3. Add a couple of drops of the blue food colouring into the vinegar. 4. Place the funnel in the mouth of the bottle and pour the vinegar mixture into the bottle (holding the funnel and bottle with one hand and pouring the vinegar in with the other hand). 5. Swivel the bottle around a bit so that the blue food colouring mixes with the vinegar. 6. Pour out ½ cup oil into the measuring cup. 7. Place the funnel into the mouth of the bottle and pour the oil into the bottle (again, holding the funnel and bottle with one hand and pouring the oil in with the other hand). 8. Remove the funnel and screw the lid back onto the bottle (making sure that the lid is secured properly so that there is no leaking). 9. Shake the mixture and see what happens (the vinegar and oil mix together). Keep watching the mixture for a few minutes (the oil and vinegar will separate). 10. Take the lid off and tip the bottle to pour out a bit of the mixture into the sink. What happens? The oil comes out and the vinegar stays to the bottom of the bottle. 11. Place your index finger (pointer) over the top of the bottle and turn it upside down over the sink very slowly, keeping your finger in place. 12. Now uncover a bit of the opening of the lid and let a little bit of the solution drip out. What comes out this time? This time the vinegar drips out. Have you noticed that the oil stayed on top of the vinegar in both experiments?
  • 11. SIMILAR EXAMPLES ONLINE 3 NAKED EGG EXPERIMENT Procedure: Place the egg in a tall glass or jar and cover the egg with vinegar. Wait a few minutes and look at the jar. You should see bubbles forming on the egg. Leave the egg in the vinegar for a full 24 hours in the refrigerator. After the 24 hours, carefully pour the old vinegar down the drain and cover the egg with fresh vinegar. Place the glass with the vinegar and egg back in the refrigerator for a full week. One week later pour off the vinegar and very carefully rinse the egg with water. The egg looks translucent because the outside shell is gone. Notice that some of the vinegar has permeated through the eggs membrane and caused the egg to get a little bigger.