Unit 1 Flashcards
What is OHERC
The Scientific Method
What Does O in “OHERC” stand for
observation
What Does H in “OHERC” stand for
Hypothesis
What Does E in “OHERC” stand for
Experiment
What Does R in “OHERC” stand for
Results
What Does C in “OHERC” stand for
Conclusion
Observation
observe and state the problem
Hypothesis
form a possible explanation based on your observation
Experiment
test the hypothesis using one variable, a controlled experiment
Results
record, organize, and analyze the data
Conclusion
state a conclusion based on the results, and REPEAT the experiment
Types of Data
Quantitative data and Qualitative
Quantitative data
measures quantities and is recorded in numbers (weight, volume, mass, temperature, distance, time, frequency, etc…)
Qualitative Data
records qualities and is recorded in words (color, texture, shape, odor, behavior, sex- male or female, etc.)
controlled experiment
only one variable is changed by the experimenter
Why
You have to be able to tell which variable is responsible;e for any observed results
Independent variable
the variable that is deliberately changed, The one that you (“I”) change
Dependent variable
the variable that changes in response
control group
one that is exposed to the same conditions as the experimental group except for the independent variable
Which axis does the independent variable always go on
x-axis
Extrapolation
extended info
Characteristics of living things
CHORGER
What does the C in CHORGER mean
cells
What does the H in CHORGER mean
homeostasis
