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Chapter One
Question | Answer |
---|---|
hypothesis | statement of what you think will happen during an investigation |
observation | something you find out about objects,events,or living things by using your senses |
experiment | the use of scientific methods to test a hypothesis |
variable | something that can change in a test |
control group | a standard against which change is measured or a group in which all conditions are kept the same; the group that doesn't receive the special treatment |
procedures | step-by-step instructions for completing a task |
data | information from which a conclusion can be drawn or a prediction can be made |
precision | the ability to consistently repeat a measurement |
accuracy | the correct things divided by the attempts |
inference | a conclusion based on observations |
evidence | observations that make you believe that something is true |
model(s) | objects or ideas that represent other things |
survey(s) | questions that are answered by people or people that are questionnaires that are given to a number of people are interviewed by people in person or on the phone |
sample(ing) | a doctor who may examine random individuals from a population |
independent variable | the variable that is changed by the scientist, the I Control variable |
dependent variable | changes when the independent variable changes;what is being measured |
experimental group | the group that receives the special treatment |