Final Review Scientific Method

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Warm-Up / EOC Prep
1. Units ordered smallest to largest include:
A millimeter, kilometer, centimeter
B milligram, gram, kilogram
C liter, milliliter, kiloliter
D kilometer, meter, millimeter
2. The independent variable is the variable that
A is controlled
B is measured
C matters
D is changed
 Turn in the Final Exam Review
packet assigned over break.

If not, TOMORROW is the last day to turn it in. It will be marked
down for being late. This is a test grade. Take it seriously!
 If you borrowed a textbook, return
it before Friday!!
Agenda
 Warm-Up
 Explain “Think Fast”
 Notes- Scientific Method and Safety
 Review worksheets
 Clean-Up
 Cool-Down
EOC Review
DAY 1: SCIENTIFIC METHOD
Objective 1.02-Scientific method
 Be able to read line and bar graphs
 Materials
 Graduated cylinder, eyedropper, bunsen burner,
watch glass, petri dish, tongs, hot plate, triple beam
balance, beaker
Objective 1.01-Lab Safety
 When heating a solution in a test tube, a student
should point the test tube away from their face and
wear goggles
 Measurementmicrometermillimetercentimetermeter
 10 cm = .1 m = 100 mm
Lab Safety
• Glassware Safety
• Sharp Instrument Safety
• Fire and Heat Safety
• Animal Safety
• Electrical Safety
• Chemical Safety
• Eye and Face Safety
• Proper Dress
 1. How should you pick up a piece of hot glassware?
A. bare hands
B. with heat-resistant gloves
C. with the sleeve of your shirt
D. With a spatula
 2. How should you hold a test tube containing a
chemical?
A. pointed away from your face
B. pointed at your eye
C. held right up to your nose
D. very close to your partner’s face
 3. You should report a cut in your skin, glass
breakage, or a chemical spill
A. after the problem is handled
B. never
C. immediately
D. after you write down what happened
• 4. When you are done with an experiment, how
should you dispense of any chimicals used?
A. mix them all up in a waste container and dump
them in the trash
B. pour them all down the sink while running the
water to dilute
C. Follow the instructions given to properly dispose
of the particular chemicals
D. Mix the chemicals in a flask and heat the mixture
until it evaporates into the air
• 5. What is the best way to read the volume of a liquid
in a graduated cylinder?
A. read the level of the liquid going up the side of the
cylinder
B. make sure five people in the lab read it before you
write it down
C. Glance at the cylinder and write down the first
number you see
D. read the level of liquid at the middle of the
meniscus at eye level
Objective 1.01-Scientific Method
 1. Make an observation
 2. Identify the problem/question
 3. Form a hypothesis
 4. Design an experiment
 5. Perform an experiment
 6. Analyze Data
 7. Make conclusions
Objective 1.01 Scientific Method
• 1. Observation: Observe birds in flight
• 2. Question: How do birds fly?
• 3. Hypothesis: The wing designs of birds catch air
differently
• 4. Experiment: Make and fly different designs of paper
airplanes to test the hypothesis
• 5. Analyze Data: take notes on flight patterns of paper
airplanes. Create a data table on how each airplane flies.
• 6. Conclusion: The size and shape of the wing gives lift to
the bird
Scientific Method
• Vocabulary
• 1. Independent variable-variable that is changed
• 2. Dependent variable-variable that is measured or
counted-changes in response to the independent
variable
• 3. Control-things the investigator keeps in control in
order to keep them the same for all samples
• 4. hypothesis-statement that gives the best possible
response to the question and should be based on
already known facts (educated guess)
Scientific Method
 Quantitative Data: numbers Ex: 500, 6, ten
 Qualitative Data: no number Ex: brown, big, tall
 Prediction- forecast (educated guess) of the possible
results of events
 1. A judgment based on data gathered in an
experiment is…
A. a skill
B. a conclusion
C. a hypothesis
D. an observation
 2. A forecast of possible or future events is a/an
A.
Analysis
B.
Predication
C.
Hypothesis
D.
Observation
 3. The end products of your investigation or
experiment are…
A.
B.
C.
D.
Results
Guesses
Predictions
Questions
Objective 2.01-pH and water
 Water dissolves most molecules and ions
 pH scale = 1-14
 1-6 = acids-the lower the pH, the stronger the acid
 7 = neutral
 8-14 = bases-the higher the pH, the stronger the base
Objective 2.01-microscopes
 Total magnification = eyepiece x objective
 Eyepiece = 10x
 Objectives = 10x and 40x
 Greatest possible magnification =
40ox (10 x 40)
Under the microscope, letters get put upside down and
backwards
Objective 2.01-microscopes
Objective 2.01-microscopes
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