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Catalyst – August 5 2 , 2009

Catalyst – August 5 2 , 2009. What are the FOUR characteristics of a good procedure? UNIT 1 QUIZ RESCHEDULED TO THURSDAY !!!!. Projector. Front Door. 2nd Period. Group 3 Katty, Isaiah, Nicolette, Robin. Group 1 Neron, Tre, Denny, Chelsea J. Group 2 Darren, Whitnie, Isaac. Group 6

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Catalyst – August 5 2 , 2009

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  1. Catalyst – August 52, 2009 • What are the FOUR characteristics of a good procedure? UNIT 1 QUIZ RESCHEDULED TO THURSDAY!!!!

  2. Projector Front Door 2nd Period Group 3 Katty, Isaiah, Nicolette, Robin Group 1 Neron, Tre, Denny, Chelsea J. Group 2 Darren, Whitnie, Isaac Group 6 Jared, Brittanee, T’Keyah, Reshad Group 5 Dorian, Elesha, Chelsea C., Chevalius Group 4 Keith, Jessica, Arethia, Sidne Group 9 Group 7 Kerrie, Jenny, Joseph, Corian Group 8

  3. Projector Front Door 4th Period Group 3 Tashica, James, Kennesha, Seandell Group 1 Brittanny V., Brandon, Katelynn, Queirra Group 2 Chelsea, Duan, Victoria, Shant’a Group 6 Darionne, Jordan J., Dajaelle, Kathy Group 4 Phillip, Jordan T., Keyera, Fatina Group 5 Frank, Amanda, Kevin, Brittany P. Group 7 Antrashion, Jayde, Lee Group 9 Kawanna, Davida, Cole Group 8 Brett, Stephanie, Tia, De’Jonnaie

  4. Honors Catalyst – August 52, 2009 • What are the FOUR characteristics of a good procedure? • What should our GLE mastery goal be? (We still haven’t decided!) UNIT 1 QUIZ RESCHEDULED TO THURSDAY!!!!

  5. Projector Front Door 3rd Period Group 1 Willie, Justin, Thien, Michael Group 3 Jessie, Jeremy, Devone, Tonisha Group 2 Emanuel, Jalen, Antoinette, James Group 4 William, Jonathon, Maya, David Group 6 Group 5 Jonas, Sean, Bridget, Christan Group 9 Group 7 Group 8

  6. Today’s Agenda • Catalyst • Finish procedure for Mystery Goo (5 min) • How to work in Ms. Stroh’s lab • Make Mystery Goo! • What is an independent and dependent variable? • Foldable Time! • Progress Reports • Exit Question

  7. Today’s Objectives • SWBAT plan a step-by-step procedure for making Mystery Goo. • SWBAT identify independent and dependent variables in a controlled experiment.

  8. Corn starch Water Graduated cylinder Beaker Cup Spatula Measuring cup Gloves Apron Goggles Available Materials Can you think of anything else you might need?

  9. Mystery goo! (30 minutes) • Gather materials for your experiment. • Talk over the procedure with your group before you begin. • Clean up • Beakers must be washed thoroughly. Place them upside down on the paper towels. • Wipe down your desks and floors.

  10. Mystery Goo Hypotheses • Let’s talk about the goo some more. • What would have happened if we added more water? How would you test it? • What would have happened if we added more corn starch? How would you test it?

  11. Experimentation • Key Point #1: • A proper experiment always has an independent variable, dependent variable, and control group. • Scientists will change one thing and measure something else. • If Mr. Jhaveri wears his basketball shoes, then he will score more points in a game.

  12. Variables • Independent Variable: The thing that I change • Basketball Shoes • Dependent variable: The thing that is measured • Points • *Remember variables are always nouns!!

  13. Good experiments… • ONLY CHANGE 1 THING!! • You must keep everything else constant, or your data may not be valid! • Control Group: The group without the independent variable. • What was the control group in the basketball experiment? IMPORTANT!!!

  14. Practice • Do older microwaves give off more radiation? What is the independent variable? IV = DV = Microwave Age Radiation

  15. Practice Are there more love bugs in the summer or the winter months? What is the dependent variable? IV = DV = Season Amount of love bugs

  16. Practice • Students of different ages were given the same puzzle to assemble. The puzzle assembly time was measured. IV = DV = Age Puzzle Assembly Time

  17. If there are more students, then there will be more school buses. IV = DV = Amount of students Number of school buses

  18. If the cost of beignets increases, then fewer will be sold. What depends on what? IV = DV = Cost of Beignets Amount of Beignets sold

  19. If the Saints sign more free agents, then they will win more games. IV = Number of free agents DV = Games Won

  20. Foldables! • First flap: Real-life scenario in hypothesis form • Second Flap: Define and identify independent variable • Third Flap: Define and identify dependent variable • Fourth Flap: Define and identify control group

  21. Foldables! • First flap: If I use more minutes, then my cell phone bill will increase. • Second Flap: DEFN, IV: number of minutes I use • Third Flap: DEFN, DV: amount of my cell phone bill • Fourth Flap: DEFN, Control group: number of minutes I usually use

  22. Exit Question • Identify the independent variable, dependent variable, and control group in the following scenario. • Dr. Ayaad believes that eating artichokes can decrease cholesterol. Dr. Ayaad recruited two sets of patients of equal age and health and she gave one group a normal diet and another an artichoke-filled diet. She then measured the patient’s cholesterol 2 weeks later.

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