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Warm-Up April 8, 2013

Warm-Up April 8, 2013. Write down the date and objective. Objective: SWBAT apply general gas characteristics by completing the Gas Law Lab. Complete the following warm-up: Describe temperature in your own words. How do you measure temperature? Describe pressure in your own words.

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Warm-Up April 8, 2013

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  1. Warm-UpApril 8, 2013 • Write down the date and objective. • Objective: SWBAT apply general gas characteristics by completing the Gas Law Lab. • Complete the following warm-up: • Describe temperature in your own words. • How do you measure temperature? • Describe pressure in your own words. • How do you measure pressure?

  2. Objective & Agenda • Objective: SWBAT apply general gas characteristics by completing the Gas Law Lab. Agenda • Every Monday Matters • Demonstrations • Gas Law Lab • Analysis • Exit Slip

  3. Every Monday Matters • Read a Book

  4. FACTS • Only 1 in 6 people read 12 or more books a year. • Leisure reading has declined 7% over the last 10 years for both genders and all ethnicities, education levels, and ages. • 55% of women read for leisure compared to 37% of men. • 43% of all literary readers perform volunteer and charity work compared to 17% of non-literary readers. The more books people read, the more active and involved they are in the community. • Book buying constitutes less than 6% of total recreational spending while spending on music, videos, computers, and software constitutes roughly 25%.

  5. Take Action Today • Read a book you’ve never read before. If you don’t have one on your shelf, go to the library or local bookstore, or order one online. • Join a book club or start one with your friends or co-workers. • Give books to people as gifts.

  6. YOU MATTER • Reading is like exercising- mental and physical benefits flourish with regular practice. Reading improves language skills, vocabulary, and spelling skills; it introduces new ideas, perspectives, and information; it staves off the effects of aging by keeping your mind active; it provides a vehicle for mental escape and creativity; and it relaxes, entertains, and inspires your soul.

  7. Notes, y’all. Matter • Matter is made up of or composed of particles (atoms, molecules) • Particles • VERY, VERY small • Have mass and volume

  8. Diffusion of a Gas -raise your hand once you smell the air freshener • What makes the smell travel across the room? • What do you think that looks like? DIFFUSION: the spreading of particles to fill the space they are given • From high concentration to low concentration • Eventually will be evenly distributed Notes, y’all.

  9. Demo • One beaker with ice cold water • One beaker on a hot plate • 2 drops of food coloring.

  10. Notes, y’all. Demo: Diffusion of Liquids Use your words. Describe how the dye spread in the hot water. Describe how the dye spread in the cold water.

  11. Answer these questions • How are the particles in the dye moving? Are they using GPS? Is this similar to the air freshener? • How did temperature (both hot and cold) affect the diffusion? • Did the diffusion happen instantly?

  12. Notes, y’all. SUPER IMPORTANT Consensus • Gas particles… • are moving constantly and their movement is random. • bump into each other and that collision changes their direction. (Think about the “break” at the beginning of a game of pool.) http://www.youtube.com/watch?v=jglizarUs6g http://en.wikipedia.org/wiki/File:Translational_motion.gif • When heat energy is added to a system, the temperature increases • Temperature = the speed of the particles

  13. Consensus Expansion and Contraction: • Matter heats up  Moves faster EXPANDS - Takes up more space • Matter cools down Moves slower CONTRACTS Takes up less space • The hotter molecules get, the faster molecules move, the further apart they move from each other.

  14. Consensus Measuring Temperature: • Humans measure hotness and coldness by comparing two things. (Ex: our body temperature vs. ice = cold) • Temperature in a thermometer is measured by the expansion/contraction of the liquid. • freezing point of water = 0°C • boiling point of water = 100°C

  15. Direct or Inverse Relationship • Direct • Studying and your grade • Inverse • Age and hearing

  16. Lab • Completing on a sheet of paper • Follow the destructions • Discussion Questions • Observation Notes • 4 stations, 8 groups • 5-7 minutes per station

  17. Consensus When the # of particles increases, pressure increases When temperature increases, Pressure increases When volume increases, Pressure decreases

  18. Lab Mini-Quiz • 10 questions • Designed to see what you learned from the lab • You can use your notes • Independent Silence

  19. Honors Homework • Reading Assignment #8 • Read pages 419-439, #1-13 odd, 14-16, 19-23 odd, 34-38, 41-50 odd, 51-53

  20. Exit Slip- April 8, 2013 You sit down to watch Transformers 3 with friends and you make popcorn. It smells delicious. Y’all are hungry and devour the bag in less than a minute. Your brother comes barreling down the stairs 10 minutes later asking for some popcorn. How would you explain why he still smells the popcorn after it is gone and why he didn’t smell it upstairs immediately when you opened the bag? a. He has a poor sense of smell b. The popcorn smell is strong c. The gas particles should have diffused (spread out) instantly d. It takes time for the gas particles to diffuse (spread out)

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