ftce chemistry sae preparation course
DESCRIPTION
FTCE Chemistry SAE Preparation Course. Session 5. Lisa Baig Instructor. 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. Course Outline. Session 1 Review Pre Test Competencies 1 & 2 - PowerPoint PPT PresentationTRANSCRIPT
FTCE Chemistry SAEPreparation Course
Session 5
Lisa BaigInstructor
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
Course OutlineSession 1
Review Pre TestCompetencies 1 & 2
Session 2Competency 5
Session 3Competency 3
Session 4Competency 4
Session 5Competencies 6, 7 and 8
Post Test
Chemistry Competencies1. Knowledge of the nature of matter (11%)2. Knowledge of energy and its interaction with matter (14%)3. Knowledge of bonding and molecular structure (20%)4. Knowledge of chemical reactions and stoichiometry (24%)5. Knowledge of atomic theory and structure (9%)
6. Knowledge of the nature of science (13%)
7. Knowledge of measurement (5%)8. Knowledge of appropriate laboratory
use and procedure (4%)
The Scientific Method
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.
Types of Data
• Qualitative Data– Qualities– Descriptive
• Quantitative Data– Numbers– Counted or Estimated
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
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
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
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
Chemistry Lab Clean Up
• After any experiment you should consult your school’s MSDS reference sheets to determine the safest/legal way to dispose of any chemical waste.
MSDS
Chemistry Lab Equipment
• Micropipette– Used to dispense
small amounts of liquid (<1mL)
Chemistry Lab Equipment
• Erlenmeyer flasks– Receptacle for acid
during titrations– Ideal for mixing,
conical shape contains liquid
Chemistry Lab Equipment
• Graduated Cylinder– Measuring specific
volumes for experimental use
Chemistry Lab Equipment
• Beaker– Pouring liquids– Stirring liquids
Chemistry Lab Equipment
• Crucible– Heating solids
• dehydration
Chemistry Lab Equipment
• Clay Triangle– Holds crucible over
flame
Chemistry Lab Equipment
• Bunsen burners– Heat source– Many experiments
Chemistry Lab Equipment
• Test tubes– Small scale
mixtures that do not require agitation
Chemistry Lab Equipment
• Hot plates– Heat source– More specific uses
Chemistry Lab Equipment
• Micropipette wells– Small scale labs,
using pipetted liquids
Chemistry Lab Equipment
• Vacuum Pump– Used to
demonstrate effects of Pressure on gas laws
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
Chemistry Lab Facilities
• Fume hood– Used to
temporarily house chemicals which may have noxious or toxic fumes associated with them
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
Chemistry Lab Facilities
• Goggle Cabinet– All students will
wear goggles in ANY experiment
– Goggle cabinets contain UV sterilization
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…
Chemistry Lab Facilities
• Fire Blanket– Flame retardant
material– Drape and hold
tightly over affected area
Break Time
Take a 10 minute Break
When we return…
POST TEST
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.
Good Luck!
When finished, turn in test to instructor, and you may leave.