Chapter 1 Vocabulary Cards Flashcards
(19 cards)
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
The standard by which the test results can be compared
density
The mass per unit volume of a material
dependent variable
The amount of growth that changes a value according to the changes in the other variables
experiment
Tests 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 variable 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 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 (International System of Units)
standard
exact quantity that people agree to use to compare measurements
technology
The application of science to help people
theory
An explanation of things or events based on knowledge gained from many observations or investigations
variable
A quantity that can have more than a single value
volume
The amount of space occupied by an object
