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Brainstorm

Brainstorm. What is chemistry? What will you see this unit? What will you hear discussed? What will you do this unit?. Topic 1.0 Lab Safety and Properties. Outcomes. 2.1k- What are caustic materials? What are some reactions that should be avoided?

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Brainstorm

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  1. Brainstorm What is chemistry? What will you see this unit? What will you hear discussed? What will you do this unit?

  2. Topic 1.0 Lab Safety and Properties

  3. Outcomes • 2.1k- What are caustic materials? What are some reactions that should be avoided? • 2.4s- Demonstrate knowledge of WHMIS standards, by using proper techniques for handling and disposing of laboratory materials • AF. Safety- Show concern for safety in planning, carrying out and reviewing activities

  4. 1.1 Identification of Safety Issues • 1) Independently create a list of the safety hazards that appear on the next slide. • 2) When asked, turn to your partner and share your ideas • 3) Share as a whole class.

  5. Lab Safety – Mind Map • Create a mind map by adding lab safety ideas to the following topics

  6. Lab Rules Using the mind maps you created, come up with 5 rules for working safely in the lab Share as a class

  7. Lab Safety Video • http://youtu.be/xJG0ir9nDtc

  8. Safety Scenarios • With your assigned group, choose one scenario • Create a skit to explain your scenario and the right and wrong way to handle the situation • Be ready to share!

  9. Safety Rules • 1. Read & know procedure. • 2. Wash hands after lab. • 3. No food or drink in the lab – no tasting! • 4. Wear safety googles always. • 5. Waft substances to smell them. • 6. Tie back long hair. • 7. No flip-flops or open shoes • 8. Place test tubes in a test tube rack when transporting and pouring in liquid.

  10. Safety Rules • 9. Wipe up spills. • 10. Wipe off counter after lab. • 11. Place chipped/broken glass in broken glass pail. • 12. Label ALL beakers/test tubes. • 13. Report all accidents/spills. • 14. Stay at your lab bench with your group. • 15. Never leave lab bench unattended.

  11. PPE Personal Protective Equipment

  12. Lab Roles

  13. Household Symbols • These symbols are on household products: Shapes: Caution Danger Warning

  14. Household Symbols

  15. Household Symbols-examples

  16. Household Symbols

  17. WHMIS Symbols • Workplace Hazardous Materials Information System • Differs from household symbols – • WHMIS is worldwide! • MSDS- Material Safety Data Sheets • Information about each chemical used • Ex. Flammability, volatility, mp, bp

  18. WHMIS symbols Where would you see each of these symbols?

  19. Special Note: • Caustic – ability to burn or corrode tissue ; refers to strong bases NaOH • Corrosive – ability to corrode; mainly refers to acids HCl Corrode – means to “gnaw at” (Latin)

  20. Reactions to AVOID • Bleach X ammonia = Chlorine gas (BAD) • Used as a chemical warfare agent in WWII – corrosive especially when inhaled X +

  21. Assignment • Pg. 96 qs. 3, 4, 5, 6, 7 • Review as a class when finished

  22. 1.2 Classifying Matter • 1.2k -How can we classify materials based on properties? • 1.2k - How can we classify materials based on their composition?

  23. Try It – On a spare piece of paper How would you group/classify the following items? *Make sure to jot down your justification for your groups.*

  24. 1.2 Classifying Matter • Matter – any substance that occupies space and has mass • Ex. Air, Water • Example of non-matter is: Skills Ideas Beliefs Energy

  25. 1.2 Classifying Matter Particle Model of Matter (review) • Matter is made of particles • Particles attract each other • Particles are always moving • Particles move faster with higher temperatures • Each pure substance has different particles than another substance

  26. 1.2 Classifying Matter A. States of Matter Sublimation Melting Evaporation Solid Liquid Gas Freezing Condensation Deposition

  27. 1.2 Classifying Matter • Draw the particles within the beaker to demonstrate the particle model of matter and states of matter Solid Gas Liquid

  28. 1.2 Classifying Matter B. Composition Made of 1 kind of matter Combo of pure substances Particles are suspended & hard to separate One kind of atom Particles suspended but can be separated Two or more atoms/elements in a fixed proportion Looks like one substance Different parts are visible

  29. 1.2 Classifying Matter Examples Oxygen O2 Grape jelly Italian salad dressing H20 Vinegar Choc chip cookie

  30. 1.2 Classifying Matter

  31. 1.2 Classifying Matter • Solutions can be in different states – don’t let this fool you!

  32. 1.2 Classifying Matter C. Properties of Matter • Matter can be identified and classified based on physical and chemical properties

  33. Video: Chemical vs. Physical Properties

  34. LAB: Identifying Mystery Substance • Turn to pg. 100-101 • Pre-lab: • Title • Question • Outcome – look on outcome sheet and write out the outcome the lab is building on • Read through procedure – be ready to answer questions before you are able to enter the lab • Safety – list one safety concern of lab and PPE suggested

  35. LAB: Identifying Mystery Substance • After the Lab: • Analysis: Answer qs. 20, 21, 23 • Make sure these are in complete sentences and you are justifying your answers.

  36. Assignment • Pg. 104 • Questions: 3. 4. 6. 7. 8. 9. 10

  37. 1.3 Changes in Matter Outcomes • 1.3k- What evidence shows that properties of a material are changed? • 1.3k - How do you know if a new substance has been made? Try IT: Turn to pg. 105 Skill Practice

  38. 1.3 Changes in Matter

  39. Practice: Label each of the following as either a Physical (P) or Chemical ( C) change

  40. Return to pg. 105 and check your answers to Skill Practice

  41. LAB: Investigating Physical and Chemical Changes • Read through pgs. 106-107 • Pre-lab: • Title • Question • Objective – check outcome sheet • Evidence Table ** changes: Omit: Changes during and after – make into one column called “Evidence”

  42. LAB: Investigating Physical and Chemical Changes • After: • Write in evidence table whether physical or chemical • In ANALYSIS, provide reasoning for each reaction

  43. Assignment • Pg. 109 qs. 2, 4

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