Chapter 1 Vocabulary Cards Flashcards
(18 cards)
Bias
This occurs when the scientist expects changes in how the results are viewed.
Constant
A factor that does not change when other variables change.
Control
Is a standard by which the test results can be compared.
Density
The mass per unit volume of a material.
Dependent Variable
Dependent variable values changes according to the changes in the other variables.
Experiment
An 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 seee how it will affect the dependent variable.
Mass
Is 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.
SI
All SI standards are universally accepted and understood by scientists throughout the world.
Standard
Is an exact quantity that people agree to use to compare measurements.
Technology
Is the application of science to help people.
Theory
Is an explanation of things or events based on knowledge gained form many observations and investigations.
Variable
A quantity that can have more than a single value.
Volume
The amount of space occupied by an object.
