FTCE Chemistry SAE Preparation Course

1. FTCE Chemistry SAEPreparation Course Session 5 Lisa Baig Instructor

2. Session Norms • Respect • No side bars • Work on assigned materials only • Keep phones on vibrate • If a call must be taken, please leave the room to do so

3. Course Outline Session 1 Review Pre Test Competencies 1 & 2 Session 2 Competency 5 Session 3 Competency 3 Session 4 Competency 4 Session 5 Competencies 6, 7 and 8 Post Test

4. Chemistry Competencies • Knowledge of the nature of matter (11%) • Knowledge of energy and its interaction with matter (14%) • Knowledge of bonding and molecular structure (20%) • Knowledge of chemical reactions and stoichiometry (24%) • Knowledge of atomic theory and structure (9%) • Knowledge of the nature of science (13%) • Knowledge of measurement (5%) • Knowledge of appropriate laboratory use and procedure (4%)

5. The Scientific Method

6. Parts Of An Experiment • Constant • The elements of an experiment that remain unchanged throughout the duration of the trials • Control • A part of the experiment that does not have the independent variable applied to it. (Think Comparison) • Independent Variable • The variable that is applied to the experiment, causes a change in the dependent variable • Dependent Variable • The variable that is measured in the experiment.

7. Types of Data • Qualitative Data • Qualities • Descriptive • Quantitative Data • Numbers • Counted or Estimated

8. Scientific Data • Accurate • Data collected are within a close range of an accepted or correct value • Precise • Data collected are within a close range of each other • Systematic Error • Differences in data collection that can be predicted theories, laws or technology application • Random Error • Differences in data collection that result from human error or environmental variances

9. Parts of an Experiment • Experimental evidence • Data collected from an experiment that can be used to validate results from repeated trials • Models • A visual or mathematical aid created using repeated experimental data to predict or represent items in nature

10. Parts of Scientific Methodology • Observations • Data collected using the senses during or before an experiment • Assumptions • Similar to Hypotheses, a guess about a situation in nature • Hypotheses • An educated guess about a problem based upon observations and background information • Theories • A statement that consistently predicts a pattern in nature • Laws • A mathematical statement that consistently predicts a pattern in nature

11. Areas of Scientific Study • Basic scientific research • No particular goal in mind • Research to learn more about nature • Applied research • Specific goal or desired product • Research to acquire desired results • Technology • Tools used within scientific study to gain insight and collect further data

12. Chemistry Lab Clean Up MSDS • After any experiment you should consult your school’s MSDS reference sheets to determine the safest/legal way to dispose of any chemical waste.

13. Chemistry Lab Equipment • Micropipette • Used to dispense small amounts of liquid (<1mL)

14. Chemistry Lab Equipment • Erlenmeyer flasks • Receptacle for acid during titrations • Ideal for mixing, conical shape contains liquid

15. Chemistry Lab Equipment • Graduated Cylinder • Measuring specific volumes for experimental use

16. Chemistry Lab Equipment • Beaker • Pouring liquids • Stirring liquids

17. Chemistry Lab Equipment • Crucible • Heating solids • dehydration

18. Chemistry Lab Equipment • Clay Triangle • Holds crucible over flame

19. Chemistry Lab Equipment • Bunsen burners • Heat source • Many experiments

20. Chemistry Lab Equipment • Test tubes • Small scale mixtures that do not require agitation

21. Chemistry Lab Equipment • Hot plates • Heat source • More specific uses

22. Chemistry Lab Equipment • Micropipette wells • Small scale labs, using pipetted liquids

23. Chemistry Lab Equipment • Vacuum Pump • Used to demonstrate effects of Pressure on gas laws

24. Chemistry Lab Equipment • Buret • Titrations • Buret Clamp • Hold the Buret to the ring stand • Ring Stand • To hold any variety of clamp or ring in an experiment

25. Chemistry Lab Facilities • Fume hood • Used to temporarily house chemicals which may have noxious or toxic fumes associated with them

26. Chemistry Lab Facilities • Gas Jets • Attach to bunsen burners • In the system shown here, both jets are off • Teacher should have control of flow of gas within classroom

27. Chemistry Lab Facilities • Goggle Cabinet • All students will wear goggles in ANY experiment • Goggle cabinets contain UV sterilization

28. Chemistry Lab Facilities • Safety Shower • Rapid release of large volume of liquid • Designed to quickly wash away caustic chemicals from entire body • Eye Wash Stand • Washes eyes in case of exposure • But if they wore the proper goggles…

29. Chemistry Lab Facilities • Fire Blanket • Flame retardant material • Drape and hold tightly over affected area

30. Break Time Take a 10 minute Break When we return… POST TEST

31. Post-Test • You will have one and a half hours to complete the post-test • This test will include examples from all the competencies. • Scores will be posted on the Quia Website tomorrow as a class file. • Also to be posted- a reference key of the correct answers AND which competency and skill were covered for each question.

32. Good Luck! When finished, turn in test to instructor, and you may leave.