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FIVE WHITE SUBSTANCES

FIVE WHITE SUBSTANCES . MODEL LESSON. FIVE WHITE SUBSTANCES OVERVIEW OF MODEL LESSON. Day 1 – Student Investigation Bell Ringer – “A newscaster reports…” question 39 pg 22 Glencoe, 200e edition or question 51 pg 27 Glencoe 2008 edition Safety Importance – RULES

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FIVE WHITE SUBSTANCES

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  1. FIVE WHITE SUBSTANCES MODEL LESSON

  2. FIVE WHITE SUBSTANCESOVERVIEW OF MODEL LESSON • Day 1 – Student Investigation • Bell Ringer – “A newscaster reports…” question 39 pg 22 Glencoe, 200e edition or question 51 pg 27 Glencoe 2008 edition • Safety Importance – RULES • Investigating Five White substances – Observations & LIQUID test • Homework – how to distinguish each substance • Day 2 – Student Investigation Continued • Bell Ringer – Review Homework • Review trials and HEAT test • Homework – Prepare for next day’s investigation • Day 3 - Student Investigation - Unknown • Bell Ringer – Review homework/share • Student inquiry-lab • What substances do you have? Day 4 – Model Lesson Debriefing • Debrief lesson • Discuss sources of error

  3. FIVE WHITE SUBSTANCESBELL RINGER (Glencoe 2008) Question 51 pg 27 A newscaster reports, “The air quality today is poor. Visibility is only a quarter mile. Pollutants in the air are expected to rise above 0.085 ppm in the next eight hour average. Spend as little time outside today as possible if you suffer from asthma or other breathing problems.” Which statements are qualitative and which are quantitative? Qualitative Statements: Quantitative Statements: • Air quality today is poor • Visibility is only a quarter mile • Spend as little time outside today as possible if you suffer from asthma or other breathing problems • Pollutants in the air are expected to rise above 0.085 ppm • Eight hour average

  4. FIVE WHITE SUBSTANCESBELL RINGER (Glencoe 2005) Question 39 pg 22 A newscaster reports, “The air quality today is poor. Visibility is only a quarter mile. Pollutants in the air are expected to rise above 0.085 ppm in the next eight hour average. Spend as little time outside today as possible if you suffer from asthma or other breathing problems.” Which statements are qualitative and which are quantitative? Qualitative Statements: Quantitative Statements: • Air quality today is poor • Visibility is only a quarter mile • Spend as little time outside today as possible if you suffer from asthma or other breathing problems • Pollutants in the air are expected to rise above 0.085 ppm • Eight hour average

  5. FIVE WHITE SUBSTANCESDAY ONE – STUDENT INVESTIGATION In two days, each group will be given an unknown. Your task in this investigation will be to: “Determine what substances are found in your unknown.” In order to complete your task, three tests will be conducted on five individual substances that may be found in your unknown. Test 1: Detailed Observations Test 2: Liquid test Test 3: Heat test

  6. FIVE WHITE SUBSTANCESDAY ONE – STUDENT INVESTIGATION SAFETY • Under NO CIRCUMSTANCES are students ever to taste any substances in the lab. • Safety goggles must remain on during the entire lab. • If liquids come in contact with skin, wash immediately with soap and water.

  7. FIVE WHITE SUBSTANCESDAY ONE – STUDENT INVESTIGATION Test 1: Detailed Observations

  8. FIVE WHITE SUBSTANCESDAY ONE – STUDENT INVESTIGATION Test 2: LIQUID TEST Materials: • Five white substances: A, B, C, D, E • Three Liquids: 1, 2, and 3 • Wax paper • 5 popsicle sticks

  9. FIVE WHITE SUBSTANCESDAY ONE – STUDENT INVESTIGATION Homework: Review data collected and make a list of ways that would allow you to distinguish one substance from another.

  10. FIVE WHITE SUBSTANCESDAY TWO – BELL RINGER Compare your list of information and observations from your homework with your lab partners.

  11. FIVE WHITE SUBSTANCESDAY TWO – STUDENT INVESTIGATION Complete any data collection for Test 1 and Test 2 Test 3: Heat Test Materials • Five white substance: A, B, C, D, and E • Hot plate or butane burner • Aluminum well plate • Popsicle sticks • Tongs

  12. FIVE WHITE SUBSTANCESDAY TWO – STUDENT INVESTIGATION If time permits: Students will design their own procedures for testing unknown substance.

  13. FIVE WHITE SUBSTANCESDAY THREE – BELL RINGER Students review and discuss with lab partner(s) laboratory procedures completed for homework

  14. FIVE WHITE SUBSTANCESDAY THREE – INQUIRY INVESTIGATION TESTING UNKNOWN SUBSTANCE Materials • Unknown substance • Hot plate or butane burner • Aluminum well plate • Popsicle sticks • Tongs • Three Liquids: 1, 2, and 3 • Wax paper • Five White Substances Assessment sheet

  15. FIVE WHITE SUBSTANCESDAY THREE – INQUIRY INVESTIGATION Homework Complete Post Lab Reflection

  16. KNOWLEDGE of INQUIRY

  17. ASPECTS of NATURE of SCIENCE

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