Chapter 1 vocab 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 that test results can be compared.
Density
the mass per unit volume of a material.
Dependent variable
value changes according to the changes in other variable
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 variable you change to see how it will affect the dependent variable
mass
a measurement of the quantity of the 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
Standards are universally accepted and understood by scientists throughout the world
Standard
an 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 and investigations.
Variable
a quantity that can have more than a single value
volume
The amount of space occupied by an object
