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Catalyst – February 8(2)+2, 2013 WELCOME BACK! Week #6

Catalyst – February 8(2)+2, 2013 WELCOME BACK! Week #6. Monday Mystery Element! Shhhh ! Has ten natural isotopes Symbol from Latin stannum Identified and used in ancient times. Tin has 10 natural isotopes!. Today’s Agenda. Catalyst and New Groups + LAB FEES!

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Catalyst – February 8(2)+2, 2013 WELCOME BACK! Week #6

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  1. Catalyst – February 8(2)+2, 2013WELCOME BACK! Week #6 Monday Mystery Element! Shhhh! • Has ten natural isotopes • Symbol from Latin stannum • Identified and used in ancient times

  2. Tin has 10 natural isotopes!

  3. Today’s Agenda • Catalyst and New Groups + LAB FEES! • Unit 2 Tracking, Big Goals, Personal Mottos • Welcome to Unit 3: Your Best Friends in Chemistry and New Groups • Anticipation Guide and Theory Article • Unit Vocabulary • Exit Question HW: Workbook Pages 45-46 Complete Vocab Words!!!

  4. Projector Front Door 1st Period Group 2 Lindsey, Darren, Chaz, Denise Group 3 Manuel, Monique, Quanisha, Andrew Group 1 Jada, Wesley, Erica, Darnell Group 5 Rebecca, Chris, A’Keelah Group 6 Shelby, Briana, A’lexis, Shawn Group 4 Kara, Jerry, DaJa, Luis Group 7 Diante, Darius, Gabby Group 9 No students Group 8 Myra, Michael, Aislinn

  5. Projector Front Door 2nd Period Group 2 Jalyn, Stephanie, Zach, TraMichael Group 3 Brittney, Unique, Brian, Dustin Group 1 Kennedy, Kalyn, Branger, Destinee Group 4 Shay, Kelsey, Keyouna, Coty Group 6 Lawuan, Markel, Mariah, Diamond Group 5 Courtney, Kayla, Chris, Kyndel Group 7 Group 9 No students Group 8

  6. Projector Front Door 4th Period Group 2 Brooke, Kamaria, Johnny, Blanca Group 3 Balen, Ashley L., Deante, Joe Group 1 Jasmine, Maya, Aldren, Peyton Group 5 Tiffany, Berta, Kristian, Mishael Group 4 Realitee, Anh, Stephen, Amber Group 6 Kelly, Briana, James, Eric Group 7 Zavonte, David, Shyann, Shae Group 9 Group 8 Abby, Ashley B., Jemaria, Tiara

  7. Today’s Objectives • SWBAT track their Unit 2 GLE Mastery. • SWBAT re-motivate themselves to become LEGEN…..DARY! • SWBAT describe and differentiate between conclusions, theories, laws, and models.

  8. Unit 2 Test GLE Mastery Averages 1st Period: 75.0% 2nd Period: 77.3% 4th Period: 81.7%

  9. Unit 2 Test Masters • 1st Place: Kayla Williams (108!) • 2nd Place: Brian James (98) • 3rd Place: Branger Hernandez (97) 2nd Period Represent!

  10. GLE MASTERY AVERAGE: 75.0% A F B D C

  11. GLE MASTERY AVERAGE: 77.3% F D C

  12. GLE Masters (80% or higher) 1st Period 2nd Period Zac Coty Keyouna Branger Brian Lawuan TraMichael Kennedy Kayla • Chris • Akara • Wesley • Diante • Briana • Aislinn • A’Lexis • Darren • Shelby • Andrew

  13. GLE Runners-Up (70-79.9%) 1st Period 2nd Period Mariah Diamond Kelsey Stephanie De’Shane Brittney • Courtney • Jalyn • Chris • Destinee • Markel • DaJa • A’Keelah • Lindsey • Manuel • Myra • Denise • Rebecca • Jerry

  14. GLE MASTERY AVERAGE: 81.7% F D A C B

  15. GLE Masters (85% or higher) Kelly Shae Realitee Blanca Deante Abby Aldren Peyton • Kristian • Ashley Bran • Briana • Balen • Kamaria • Tiff • Zavonte • Anh

  16. GLE Runners-Up (80-84.9%) • Brooke • Amber • Johnny • Jasmine • Jemaria

  17. Resume!Unit 2 Test GLE Mastery Tracking • Please fill out resume completely • Determine the number of points you got correct in order to calculate % mastery for each GLE • Pay attention to the questions listed for each GLE!

  18. Unit 3: Your BEST FRIENDS in Chemistry:Atoms and the Periodic Table

  19. LESSON TITLE: CONCLUSIONS, THEORIES, LAWS, AND MODELS

  20. Anticipation Guide (10-15 min) • Before reading the entire article, mark if you agree or disagree with each. • After reading the entire article, fill in the paragraph number where you found the answer to each statement. • Reflection: Were you correct or not? What did you learn?

  21. Reminder! Conclusions • Key Point #1: A conclusion is a judgment based on data from a scientific experiment.

  22. What is a scientific law? Key Point #2: A scientific law is a concise (short) statement that summarizes the results of many observations and experiments. • Laws are NOT long explanations • That is what theories are for!

  23. What is a scientific theory? Key Point #3: A scientific theory is a well-tested explanation for a broad set of observations. • Higher level than hypothesis (many tests needed to support a theory) • Can be or may need to be changed in the future

  24. From HowStuffWorks.com • WHAT IS A THEORY? In science, a theory is an attempt to explain a particular aspect of the universe. Theories can't be proven, but they can be disproven. If observations and tests support a theory, it becomes stronger and usually more scientists will accept it. If the evidence contradicts the theory, scientists must either discard the theory or revise it in light of the new evidence.

  25. THEORY Explanation supported by many, many experiments MORE THAN ONE SCIENTIST Takes time! How is a THEORY different from a CONCLUSION or HYPOTHESIS?

  26. Acceptance of Scientific DiscoveryThe Long Version • Use the following rules of evidence to examine experimental results: • Can an expert's technique or theory be tested, has it been tested, or is it simply a subjective, conclusive approach that cannot be reasonably assessed for reliability? • Has the technique or theory been subjected to peer review and publication? • What is the known or potential rate of error of the technique or theory when applied? • Were standards and controls applied and maintained? • Has the technique or theory been generally accepted in the scientific community?

  27. Acceptance of Scientific Discovery“Cliff’s Notes” • Use the following rules of evidence to examine experimental results: • Has it been adequately tested? • Has peer review occurred? • What kind of error does it have? • Were there standards or control groups? • Has it been accepted by scientific community?

  28. F = ma

  29. What is a scientific model? Key Point #4: A scientific model is a simplified description of something that happens in nature (or technology), and it can be used to make predictions.

  30. Vocabulary Look-Up! • Theory • Scientific law • Atom • Isotope • Atomic number • Mass number • Atomic mass • Protons • Neutrons • Electrons • Cathode ray • Nucleus

  31. Exit Question • Describe either a scientific conclusion OR a scientific model. • What is one difference between a theory and a law? HW: Complete Workbook Pages 45-46 + Complete Vocabulary!

  32. Exit Question • Describe either a scientific conclusion OR a scientific model. • What is one difference between a theory and a law? Honors HW: Workbook Pages 44-46 + Study Vocabulary

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