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Chemistry

Chemistry. Semester 1 2012-2013. Welcome Back!. Introduction and seating chart Your summer – truths and lies 4 corners Room Tour My Expectations FISH!. My Summer – Truth? Lie?. We added 5 pets to our family. I moved this summer.

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Chemistry

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  1. Chemistry Semester 1 2012-2013

  2. Welcome Back! • Introduction and seating chart • Your summer – truths and lies • 4 corners • Room Tour • My Expectations • FISH!

  3. My Summer – Truth? Lie? • We added 5 pets to our family. • I moved this summer. • On your entry task paper, write your truth and lie under TUESDAY. Don’t tell yet! • Share and see who gets the right answer! • Most outrageous truths • Most convincing lies

  4. 4 Corners • Corner A, B, C, D • Walk to show your answer • Before we start, silently pick someone you think you have little in common with. You may be surprised • Sit back down and discuss.

  5. 9/5/12 Wednesday • Entry Task: • Write down one thing you’re looking forward to about this school year. • Per 1 and 2 room tour • Per 2 and 3 – tour for building expectations • Finish FISH! • Per 5 – Handbook review

  6. 9/6/12 Thursday • Entry Task: • What do you think is the most important behavior of successful students? • Per 2 and 3 Syllabus and MI survey

  7. Introduction to Class • MI Survey – graph as homework! Due Friday • Cards • FIRST and LAST NAME • Your strongest intelligence • Your goal for a grade • Hopes for the class • Concerns for the class • What is Chemistry? P. 41 • Syllabus – units we will cover, grading, materials • PARENT CONTACT AND SIGNATURE DUE MONDAY! • Your learning goals – choose a topic from syllabus to write on leaf…

  8. Learning Commitments – help shape them… • GOAL: create a list of commitments to be successful learners. • Each team will brainstorm THREE successful student behaviors we can commit to. Try to keep them short and sweet, yet cover all the key points. • Share and find common themes. • Each class will have a poster of their learner commitments.

  9. 9/7/12 • Entry Task: • SAY SOMETHING NICE! – watch video, write our own, share • Table leaders – gather papers, paper clip and turn in • Reminder – syllabi due MONDAY • MI Survey due TODAY

  10. Week of 9/10-9/149/10/12 Monday • Entry Task: • What do you recall to be the most important aspects of lab safety? • How will you demonstrate safety in the lab? • PLEASE TURN IN YOUR SYLLABUS!!!!! • Find old or nametag new bins…

  11. SAFETY • Complete chemistry safety assignment and quiz – turn in. • Has everyone turned in a safety contract? • Cut them, hand me bottom portion. • Glue top portion to page 1 of notebooks. • Glue “Designing an Investigation” to pages 2 and 3. • This document will guide your experimental design.

  12. 9/11/12 Tuesday • Entry Task • Listen to a “story” about Calcium. • Write down 2 interesting things you heard. • Glue lab sheet to page 4. • Tomorrow we will consider the rubric…this will be attached to your team poster…

  13. Begin thinking experimentally… • GOAL: conduct a lab and make a poster of your investigative QUESTION, HYPOTHESIS, DATA and CONCLUSION. • To start: Get in teams of 3-4. • Read through lab paper and rubric. • Follow the steps listed on the bottom. • ROUGH DRAFT – begin your poster in pencil…complete in color.

  14. Continue… • Working on your posters. • Remember to consult your scientific method guide when necessary: • Step 1 – Question (includes variables) • Step 2 – Hypothesis • Step 4 – Materials and Procedure – given to you! • Step 5 – Data Table – design one and collect the data. • Step 6 - Conclusion

  15. 9/11/12 Tuesday • Entry Task • Listen to a “story” about Calcium. • Write down 2 interesting things you heard. • Glue lab sheet to page 4. • Tomorrow we will consider the rubric…this will be attached to your team poster…

  16. Begin thinking experimentally… • GOAL: conduct a lab and make a poster of your investigative QUESTION, HYPOTHESIS, DATA and CONCLUSION. • To start: Get in teams of 3-4. • Read through lab paper and rubric. • Follow the steps listed on the bottom using your scientific method guide on page 2 or your notebook. • ROUGH DRAFT – begin your poster in pencil…complete in color.

  17. 9/12/12 Wednesday • Entry Task • Listen to a “story” about Chlorine. • Write down 2 interesting things you heard. • But remember, when calcium and chlorine form a COMPOUND their characteristics can be totally different: CaCl2

  18. SAFETY in the lab • Put all papers and books under table EXCEPT your poster – you’ll need to record data! • Goggles at all times. • ONE STUDENT per group should wear gloves and do the measuring and stirring of CaCl2. • You may TARE and measure the CaCl2 into the paper cups. • CAREFUL with glass thermometers! • The lab will take approximately 20-35 minutes. PLEASE STAY ON TASK!!! • I will call for CLEAN UP at 5 minutes to the bell. You must return all materials exactly as you found them.

  19. Continue… • Working on your posters. • Remember to consult your scientific method guide when necessary: • Step 1 – Question (includes variables) • Step 2 – Hypothesis • Step 4 – Materials and Procedure – given to you! • Step 5 – Data Table – design one and collect the data. • Step 6 - Conclusion

  20. Chemical Reactions • All chemical reactions release or absorb energy. Chemical reactions that release energy in the form of heat are called exothermic reactions. Some chemical reactions absorb energy and are called endothermic reactions. • CaCl2 (s) Ca2+ (aq) + 2 Cl-(aq) • Reactants:calcium chloride + water • Products: ions of calcium and chlorine (charged particles) water

  21. 9/13/12 Thursday • Entry task • What makes a good poster? • Choose a poster in the room. Make a list of what makes it a good poster. • Clear desks. Retrieve posters from back table. • REMINDER: only ONE student from each team to wear gloves. GLOVES ARE TO BE REUSED until lab is complete. Store in science bin.

  22. Writing Conclusions… • Consider the data table…discuss HIGHS and LOWS. • What can you conclude? • Was your hypothesis supported with data? • Write your conclusion using RADDS • R is for restating the investigative question. • A is for answering the question. • D1 is about the HIGH data point. D2 is about the LOW data point. • S can be your scientific explanation.

  23. Endothermic or Exothermic • All chemical reactions release or absorb energy. Chemical reactions that release energy in the form of heat are called exothermic reactions. Some chemical reactions absorb energy and are called endothermic reactions. • CaCl2 (s) Ca2+ (aq) + 2 Cl-(aq) • Reactants:calcium chloride + water • Products: ions of calcium and chlorine (charged particles) • Please also research the energy changes of dissolution of salts in water water

  24. 9/14/12 • Entry Task: • SAY SOMETHING NICE! • Table leaders – gather papers, paper clip and turn in

  25. Completing our posters… • DISCUSS THE RUBRIC – this shows how you will be graded! • All team members names on the back. • Add color – bold headings/titles • Additional: images of science equipment, graph of data, materials and procedure • POSTERS DUE BY END OF CLASS!!!!!!!

  26. 9/17/12 Monday • Entry Task • Why is it more important to use the average INCREASE in temperature rather than the average ending temperature? • Will you emphasize this data on your poster? • TUESDAY AND WEDNESDAY: Science Benchmark Testing – testing environment, Fall assessment for inquiry skills

  27. Completing our posters… • DISCUSS THE RUBRIC – this shows how you will be graded! • All team members names on the back. • Add color – bold headings/titles • Additional: images of science equipment, graph of data, materials and procedure • POSTERS DUE BY END OF CLASS!!!!!!!

  28. 9/18/12 Tuesday • NO entry task • Benchmark Testing for Inquiry Skills • Please place all belongings under your tables. • Keep your eyes on your own papers.

  29. 9/19/12 Wednesday • NO entry task • Benchmark Testing for Inquiry Skills • Please place all belongings under your tables. • Keep your eyes on your own papers.

  30. 9/20/12 Thursday • NO entry task • Benchmark Testing for Inquiry Skills • Please place all belongings under your tables. • Keep your eyes on your own papers.

  31. 9/20/12 Thursday • Entry Task • What is SI? (Hint: we often call it “metric”) • Finish testing… • If finished, begin metric measuring assignments

  32. 9/21/12 Friday • Entry Task: • SAY SOMETHING NICE! • Table leaders – gather papers, paper clip and turn in

  33. 9/24/12 MondayWeek of 9/24-9/28 • Entry Task: • SAY SOMETHING NICE! • Table leaders – gather LAST WEEK’S papers, paper clip and turn in • Please take out your 2 puzzles from Friday. • Do you have questions? • Trade and Grade! Graders – sign your name next to the score.

  34. 9/25/12 Tuesday • Entry Task • Is there a mathematical way to convert 250 mg to grams?

  35. Today’s work… • Glue “Metric Mania Conversion Practice” to page 7 of your notebook. • Fill in the squares at the top. • Practice together. • Glue “Metric Mania Conversion CHALLENGE” to page 8. Finish this. • I will grade as you work Notebook check… • New idea: dimensional analysis! • Glue “Dimensional Analysis” to pages 9 and 10.

  36. Dimensional Analysis • Dimensional analysis is a mathematical system using conversion factors to move from one unit of measurement to a different unit of measurement. For example, if you need to calculate how many seconds are in a day, you can use dimensional analysis to set all of your needed conversions into one problem. • 1 day = ? seconds • 1 day x 24 hours x 60 minutes x 60 seconds = • 1 day 1 hour 1 minute • Cross out all labels that cancel and do the math. • 86,400 seconds • 1 day = 86,400 seconds

  37. 9/26/12 Wednesday • Entry Task • Question 1: Convert 50 mL to liters using dimensional analysis. • Question 2: What is density? • Understanding triple beam balances. • Interactive tutorial 1: reading triple beam balances. • Interactive tutorial 2: how to use a triple beam balance.

  38. 9/27/12 Thursday • Entry Task: • What tool would you use to measure mass? • What units will your measurements be labeled with?

  39. Density = mass/volume • Glue “Density” to page 12. • Glue “Measuring Mass, Volume and Density” to page 13. • Your team will need a tote with materials. • Please carefully use the triple beam balance to complete the lab. • Replace all materials in the tote. • Place tote and balance on back table.

  40. Density Lab with Triple Beam Balances

  41. 9/28/12 FridayWeek of 9/24 to 9/28 • Entry Task • SAY SOMETHING NICE! • Table leaders – gather papers, paper clip and turn in

  42. 10/1/12 MondayWeek of 10/1 to 10/4 • Entry Task • Sulfur has a density of 5.4 g/cm3. Will it sink or float in water? • Listen to a “story” about sulfur and write down 2 interesting things. • VOTE ON RECYCLING POSTERS • Discuss answers to pages 7-10 in Notebooks. • Heads UP! Quiz on Wednesday… • WATER QUALITY TESTING – chaperones and testing technicians…could you all miss one 6th and 7th period sometime next week or week after?

  43. JEOPARDY • This is an ASSIGNMENT This is a way to study for the upcoming quiz. • Each person will design questions and answers. • TOPICS: metric system, metric conversions by moving the decimal, metric conversions using dimensional analysis, using triple beam balances, density. • USE pages 6-12 in your notebook • Plus puzzles, metric worksheets, triple beam balance notes

  44. 10/2/12 Tuesday • Entry Task • The density of ice is 0.9167 g/cm³ ... Explain why it floats in liquid water. • Design Jeopardy Questions/Answers. • Play Jeopardy! • Quiz tomorrow!!

  45. 10/3/12 Wednesday • Entry Task • Check your missing work slips. • Write down what you are missing here. • If you have missing work, you will be quietly working on that after the quiz.

  46. 10/4/12 Thursday • Entry Task • What is an atom? • Is it bigger or smaller than a cell? • What is it made up of?

  47. What do you think? • How many atoms are in one grain of sand? • One drop of water?

  48. How small are atoms? • “One grain of sand on a typical beach contains more atoms than there are grains of sand on the beach.” • “There are 2,000,000,000,000,000,000,000 atoms of oxygen in one drop of water.”

  49. Inside an Atom • 3 kinds of particles – • electrons, neutrons and protons • Nucleus consists of neutrons (no charge) and protons (positive charge) • Electrons (negative charge) whiz around in a “cloud”

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