Chapter 1 Vocab Cards Flashcards
bias
Bias occurs when what the scientist expects changes how the results are viewed.
constant
A factor that does not change when other variables change.
control
It is the standard by which the test results can be compared.
density
It is the mass per unit volume of a material.
dependent variable
Its value changes according to the changes of the other variables.
experiment
It tests the result of one thing on another using controlled conditions.
graph
It is a visual display of information or data,
hypothesis
It is a possible explanation for a problem using what you know and what you observe.
independent variable
The variable you change to see how it will affect the dependent variable.
mass
It is a measurement of the quantity of matter in an object.
model
It represents an idea, event, or object to help people better understand it.
scientific law
It is a statement about what happens in nature and that seems to be true all the time.
scientific method
An organized set of investigation procedures.
SI
An improved version of the metric system known as the International System of Units or SI, all SI standards are universally accepted by scientists.
standard
It is an exact quantity that people agree to use to compare measurements.
