Studied by 13 people
biology
the study of life
characteristics of living beings
-Made of one or more cells
-Can grow/develop
-Requires an energy source
-Gas exchange occurs
-Has the potential to reproduce
-Contains genetic information
-Reacts to stimuli
-The species can adapt/evolve over time
ocular lens
microscope eyepiece
coarse focus
adjusts the location of the stage
fine focus
refines the view through the lens
nosepiece
the piece to move to switch objective lenses
objective lenses
the three lenses with various magnifications on a microscope
natural magnification of the microscope
10x, so when you use an objective lens it takes the magnification of the objective lens and makes it x10
magnification of red objective lens
4x
magnification of yellow objective lens
10x
magnification of blue objective lens
40x
specimen stage
the area where the specimen sits
stage controls
two knobs that allow you to adjust the positioning of the stage (forward, backward, right, left)
stage clips
clip the specimen into place
control group
cultivated under normal conditions; sees if the experiment is functioning properly
experimental group
cultivated under the same conditions as the control group while changing one variable
independent variable
the variable that is changed in the experimental group
dependent variable
the variable affected (and measured) in the experiment
controlled variable
a variable that does not change from the control to the experimental groups
correlation
a relationship between two variables that may change together over time BUT won’t be connected by cause and effect
causation
the change in one variable will cause the value of another variable to
change (cause and effect)
quantitative data
involves numbers (more likely to be objective truths, as long as the
tools are being used correctly)
qualitative data
involves descriptions/adjectives (more likely to be subjective…could involve bias) - it’s not this data isn’t needed or valued, it’s just not typically the main dependent variable being measured
graphing experiment results
x-axis = dependent variable; y-axis = independent variable
theory
a coherent group of propositions formulated to explain a group of facts or phenomena in the natural world and repeatedly confirmed through experimentation and/or observation
law
statement, based on repeated experiments or observations, that accurately describes or predicts a range of natural phenomena
hypothesis
a supposition or proposed explanation made on the basis of limited evidence as a starting point for further investigation
