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Vocab
Scientific Method
Characteristics of Life
More Characteristics of Life
Variables
100
Define theory.
Definition in notebook.
100
One cow is fed a growth hormone, and another cow is not. After a year, both cows are weighed. What is the independent variable?
growth hormone
100
What does DNA stand for?
deoxyribonucleic acid
100
What does biotic mean?
Living or was once living
100
Independent variable causes a change in ___________ ____________.
dependent variable
200
Define control.
Definition in notebook.
200
What does empirical mean?
proveable
200
What is the term that describes how an organism builds up or breaks down material?
Metabolism
200
Abiotic mean?
Non living never was living
200
What is a constant?
Parts of the experiment that are held the same, so that only the independent variable is affecting the experiment.
300
Define hypothesis.
Educated testable guess.
300
Using the five senses you make ___________________.
Observations
300
What are the smallest units of life?
Cell
300
Stable internal environment?
Homeostasis
300
In an experiment testing to see if a new shampoo will make hair grow if left on overnight, what is the independent variable?
Shampoo
400
What is the difference between a theory and a law?
Reasonable answer.
400
Give an example of an inference.
Reasonable answers.
400
What is a stimulus?
A signal to which an organism responds.
400
What characteristic of life describes how a person might eat?
Obtain and use matter and energy
400
In an experiment to see if shampoo left on overnight will make hair grow, what is the dependent variable?
hair growth
500
Define evolution and give an example.
Reasonable answer.
500
Describe the difference between qualitative and quantitative.
Reasonable answers
500
How is asexual reproduction different than sexual reproduction?
Main key: gametes.
500
Explain why a living organism must meet all 7 requirements.
reasonable answer
500
How many variables should be tested at a time? Why?
Only 1; if a person tests more than that they will not know what effect was caused by each variable.