Scientific Method
Experiments
Analyze Results
Characteristics of Life 1
Characteristics of Life 2
100
a systematic process for asking questions and testing ideas.
scientific method
100
What you change in an experiment on purpose
independent variable
100
why should experiments be repeated
to make sure the results are not a fluke
100
the study of living things
biology
100
What is the difference between growth and development?
growth = increase in size
development = change forms
200
A testable educated guess based on observations and evidence
hypothesis
200
What you measure in an experiment as a result
dependent variable
200
the collection of measurements and observations you record throughout the experiment
data
200
smallest unit of life
cells
200
Cells in the body differ in shape and function.
differentiation
300
carefully noticing something in the world around you — using your senses or instruments to gather information
observations
300
Everything that is kept the same in all trials of an experiment
controlled variables
300
organizing data into charts, graphs, or tables so you can spot patterns
analysis
300
What is the difference between unicellular and multicellular?
unicellular - one celled organism
multicellular - organism made of more than one cell
300
Refers to biochemical reactions that occur in cells as cells use materials for energy.
metabolism
400
Give one reason, not already mentioned, why the scientific method is important
answers can vary
400
the group in an experiment that receives no changes and is the baseline for comparison
control group
400
What are the independent and dependent variables?
independent = treatment of coffee or water
dependent = circumference measured
400
What is the difference between sexual and asexual reproduction?
sexual = offspring have DNA from 2 parents
asexual = offspring have DNA from 1 parent
400
What is the difference between a stimulus and a response?
stimulus: a signal
response: a reaction
500
give one reason, not already mentioned, why the scientific method is important.
answers will vary
500
the group that receives changes being tested and measured in and experiment
experimental group
500
Why do we change only one variable in an experiment at a time?
So we know exactly what caused the results
500
contains instructions for traits and functions
DNA
500
Maintaining internal balance
homeostasis