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Billons to Billionths

Billons to Billionths. Presenter: Carrie Persing 6-12 Math Dept. Chair MathScience Innovation Center. “ Nanoscience and technology will change the nature of almost every human-made object in the 21 st Century.” M.C. Roco , R.S. Williams, & P.Alvisatos , 1999.

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Billons to Billionths

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  1. Billons to Billionths Presenter: Carrie Persing6-12 Math Dept. ChairMathScience Innovation Center

  2. “Nanoscience and technology will change the nature of almost every human-made object in the 21st Century.”M.C. Roco, R.S. Williams, & P.Alvisatos, 1999

  3. The NSF projects that 6 million workers will be needed in the field of nanoscience and technology.www.nano.gov

  4. What is a nanometer and why is size and scale important ? • Nano = dwarf in Greek • It is one billionth of a meter (1 x 10-9) • Properties of materials change at the nano level • a. melting point b. fluorescence c. conductivity d. chemical reactivity

  5. Extremely Large vs. Extremely Small Numbers

  6. How many grains of salt can fit in a gallon pitcher?

  7. DESCRIBE A BILLION

  8. A million seconds is 12 days A billion seconds is 31 years • A million hours ago it was 1896 A billion hours ago man did not exist.

  9. One red blood cell can deliver one billion molecules of oxygen. • There are about 6.2 billion people in the world.

  10. How tall would a stack of a billion sheets of cardstock be?

  11. ChallengeIf one story of a building is about 3 meters high how many stories would a billion sheets of card stock be?

  12. ChallengeWhat fraction 0f 66,667 stories would one sheet of paper be?

  13. How many grains of salt can fit in a gallon jug? 1,000 grains 1 Pinch = 1,000,000 grains 1 Cup = 1 Jug = 16,000,000 grains

  14. How big would a container have to be to fit one billion grains?

  15. Fox Elementary School is selling raffle tickets so you buy one ticket. The student tells you that you now have a one in ten chance of winning a prize.

  16. A glass is filled with 95 grams of water. If I wanted to make it a 5% sugar solution, how much sugar must I add?

  17. How did I make this a 10% solution out of water and food coloring?

  18. SCENTED SOLUTIONS

  19. Cup 1 has a 10% solution or 1/10 solution * 1 part per ten What would be the concentration be for Cup 2? 1/10 of 1/10 = 1/100 1% solution or 1 part per hundred

  20. A Nanometer is a billionth of a meter Well how small is that exactly?

  21. The earth’s continents drift at about 1 nanometer per second

  22. The average fingernail grows about one nanometer per second

  23. There are more nanometers in the palm of your hand than there are cars in the United States.

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