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ms.butler fc
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science
is an organized way of gathering and analyzing evidence about the scientific world
observation
the act of noticing and describing events or processes in a careful, orderly way
inference
is a logicial interpretation based on what scientists already know
hypothesis
is a scieintific explaination or a set of observations that can be tested in ways that support
or reject it
controlled experiment
variable kept unchanged and controlled
independent variable
also called manipulated variable, delibertely changed
dependent variable
the variable that is observed and changed in response to the independent variable
control group
is exposed to the same conditions as the experimental group except the one independent
variable
data
scientists make detailed records of experimental observations and gather info
theory
evidence from many scientific studies may support several hypothesis
bias
particular prefernece or point of view that is personal rather than scientific
biology
is the study of life
dna
genetic code
stimulus
the signal to which the organism responds
sexusl reproduction
cells from two parents unite to form the first cell of a new organism
asexual reproduction
process of reproduction involving a single parent that results in offspring genetically
identical as the parent
homeostasis
relativelly constant physical and chemical conditions that organisms maintain
metabolism
the combination of chemical reactions through which an organism builds up or breaks down
materials
biosphere
part of earth in which life exists including land , water, and air or atmosphere