Chapter 1 vocab cards Flashcards
Bias
when what the scientist expects changes how the results are viewed.
constant
A factor that does bot change when other variables change
Control
The standard by which the test results can be compared
Density
The mass per unit volume of a material
dependent variable
its value changes according to the changes in the other variables.
experiment
test the effect of one thing on another using controlled conditions.
graph
A visual display of information or data.
Hypothesis
A possible explanation for a problem using what you know and what you observe.
Independent Variable
The bariable you change to see how it will affect the dependent variable.
Mass
A measurement of the quantity of matter in an object
Model
Represents an idea, event, or object to help people better understand it.
Scientific law
A statement about what happends in nature and seems to be true all the time.
scientific method
An organized set of investigation provedures
SI
standards are universally accepted and understood by scientist.
Standard
An exact quantity that people agree to use compare measurments.
