Chapter 1 Vocabulary Cards

Question 1

Bias

Answer 1

When what the scientist expects changes how the results are viewed

Question 2

Constant

Answer 2

A factor that does not change

Question 3

Control

Answer 3

The standard by which he test results can be compared

Question 4

Density

Answer 4

The mass per unit of volume of material

Question 5

Dependent variable

Answer 5

The amount of growth

Question 6

Experiment

Answer 6

Tests the effects of one thing on another using controlled conditions.

Question 7

Graph

Answer 7

A visual display of information or data.

Question 8

Hypothesis

Answer 8

A possible explanation for a problem using what you know and what you observe.

Question 9

Independent variable

Answer 9

The variable you change to see how it will affect the defendant variable.

Question 10

Mass

Answer 10

A measurement of the quantity of matter in an object.

Question 11

Model

Answer 11

Represents an idea, event or object to help people understand it better.

Question 12

Scientific law

Answer 12

A statement about what happens in nature that seems to be true all the time.

Question 13

SI

Answer 13

Standards are universally accepted and understood by scientists throughout the world.

Question 14

Standard

Answer 14

Exact quantity that people agree to use to compare measurements.

Question 15

Technology

Answer 15

The application of science to help people.

Question 16

Theory

Answer 16

An explanation of things or events based on knowledge gained from many observations and investigations.

Question 17

Variable

Answer 17

A quantity that can not have more than a single value

Question 18

Volume

Answer 18

The amount of space occupied by an object