definitions
a possible explanation for a set of observations or a possible answer to a question
hypothesis
Why does the text use scientific methodology?
There is a number of methods that are investigated
The scientific study of life
biology
How many variables are changed in a controlled experiment?
1
a process of noticing and describing events or processes in careful way
observation
an organized way of gathering evidence about the natural world
science
Why should there be only 1 independent variable in an experiment?
To know what variable caused the results in an experiment
evidence; information gathered from an observation
data
What characteristics do all living things share?
Basic cell units and development
Genetic code and energy
a particular preference or point of view that is personal, rather than scientific
bias
the genetic material that organisms inherit from parents
DNA
What scientific attitudes help make new ideas?
Curiosity
Open minded
Creativity
an experiment in which only one variable is changed
controlled experiment
Which two characteristics of life are most obviously involved in making evolution?
DNA and reproduction
a well tested explanation that unifies a broad range of observations and hypotheses
theory
the relatively constant internal physical and chemical conditions that organisms maintain
homeostasis
Why do scientists set up several sets of control and experimental groups?
They want to double check the results
the part of earth in which life exists, including land, water, and air
biosphere
What happens if data does not support the hypothesis?
Must change the hypothesis
Make new predictions
a signal to which an organism responds
stimulus
the group is an experiment that is exposed to the same conditions as the experimental group except for the independent variable
control group
What are the goals of science?
To give explanations for natural events
To understand patterns
Make predictions
the combination of chemical reactions through which an organism builds up or breaks down material
metabolism
What are the parts of a scientific methodology?
Ask a question, form hypothesis, experiment, collect data, and conclusion
the combination of chemical reactions through which an organism builds up or breaks down material
metabolism