1
process of noticing and describing events or process in a careful, orderly way
observation
variable that is observed and changes in response to the independent variable
dependent variable (aka responding variable)
scientific study of life
biology
signal to which an organism responds
stimulus
how many variables should you test for in a controlled experiment
1
a logical interpretation based on prior knowledge or experience
inference
group in an experiment that that is exposed to the same conditions as the experimental group except for the independent variable
control group
type of reproduction in which cells from 2 parents unite to form the 1st cell of a new organism
sexual reproduction
relatively constant internal, physical, and chemical conditions that organisms maintain
homeostasis
true or false: experiments must be able to be repeated or validated
true
a possible explanation for a set of observations or possible answers to scientific questions
hypothesis
evidence or information gathered from observations
data
type of reproduction that involves a single parent that results in offspring that are genetically identical to them
asexual reproduction
change over time
evolve
why should scientists publish their work
- so other scientists can accurately preform the experiment
- improve, disprove, or approve the experiment
experiment in which only one variable is changed
controlled experiment
well tested explanation that unifies a broad range of observations and hypotheses, enabling scientists to make accurate predictions about new situations
theory
genetic material that offspring inherit from their parents
dna
what are the three goals of science
1. to investigate and understand nature
2. to explain events in nature
3. to use those explanations to make useful predictions
when coming up with a hypothesis, what must you be able to do with it and where can u get it/what does it arise from
you must be able to test it
it comes from observations and inferences
factor in a controlled experiment that is deliberately changed
independent variable (aka manipulated variable)
particular preference or point of view that is personal rather than scientific
bias
the combination of chemical reactions through which an organism builds up or breaks down materials
metabolism
what are the steps of the scientific method in order
1. ask a question
2. form a hypothesis
3. set up a controlled experiment
4. record and analyze results
5. draw a conclusion
what are the basic units of mass, length, temp, and volume
mass - grams
length - meters
volume - liters
temp - celsius