Vocabulary
Observation
Uses the five senses to gather information about the world.
What writting implement do we use in our lab notebook?
Pen
Which variable stays consistent throughout the experiment?
Controlled
What is a hypothesis?
An educated guess that lead to an experiment.
36 in = ____ ft
36 in x 1 ft/12 in
36 divided by 12
36 in = 3 ft
Data
Information
How do we correct mistakes in our lab notebook?
we cross out the mistake and initial it.
Which variable is measured by the scientist?
Dependent
Why should a hypothesis be testable?
Because each hypothesis should lead to the creation of an experiment.
270 ft = ___ yd
270 ft x 1 yd/3 ft
270 divided by 3
90 ft
Quantitative Data
Information gathered from numbers.
What is the organization that determines lab safety protocols?
OSHA
Occupational Safety Hazard Administration
Which variable is controlled by the scientist?
Independent
How do we write a proper hypothesis?
By using If/then and because statements.
52 months = weeks
52 months x 4 weeks/1 month
52 x 4 = 208 weeks
52 months - 208 weeks
Qualitative data
Information gathered by the persons perspective and experiences.
Mention three measuring tools used in the lab.
Pipette, graduated cylinder, beaker, balance, scale, measuring tape, meter stick/yard stick, rulers, thermometer.
Which one is the independent variable in this premise?
If I study for twenty minutes every day, then my grades will improve.
The amount of time we study daily.
Which variable goes after the word IF in a hypothesis?
Independent
3.6 hours = minutes = seconds
3.6 hours x 60 min/1 hour
3.6 hours = 216 min
216 min x 60 sec/1 min
216 min=12960 sec
Scientific Method
Mention two lab safety rules.
No food, no drink and no chewing gum.
Use appropriate clothing. Close shoes. Lab coat.
Do not taste anything in the lab.
Wait for instructions.
Never work in the lab alone.
A students makes paper planes in each one of his science classes. Each day more planes appear in the roof of the teachers classroom. Create a hypothesis based on the premise.
If a student makes more planes, then there will be more found in the teachers classroom because other students will make planes and add them to the growing collection.
Which variable goes after the word THEN in a hypothesis?
Dependent
5 yd = ____ft = _____ in
5 yd = ____ft = _____ in
5 yd x 3 ft = 15 ft
15 ft x 12 in = 180 in