Physical Science Ch. 1

An organized set of investigation procedures.

A. observations
B. scientific method
C. theory

A possible explanation for a problem

A. theory
B. experiment
C. hypothesis

Test the hypothesis

A. theory
B. experiment
C. hypothesis

A quantity that can have more than a single value.

A. variable
B. model
C. constant

Its value changes according to the changes in the independent variable.

A. independent variable
B. dependent variable
C. constant

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

A. independent variable
B. dependent variable
C. constant

A factor that does not change

A. control
B. variable
C. constant

The standard by which the test results can be compared.

A. control
B. variable
C. constant

Occurs when what the scientist expects changes how the results are viewed.

A. bias
B. theory
C. control

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

A. experiment
B. control
C. model

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

A. scientific law
B. theory
C. hypothesis

A statement about what happens in nature.

A. scientific law
B. theory
C. hypothesis

Application of science to help people.

A. technology
B. scientific law
C. hypothesis

An exact quantity that people agree to use to compare measurements.

A. control
B. standard
C. variable

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

a. control
b. SI
c. feet

Unit used to measure distance.

A. gram
B. meter
C. liter

Unit used to measure time.

A. meter
B. liter
C. second

Unit used to measure mass.

A. gram
B. meter
C. liter

Unit used to measure volume.

A. gram
B. meter
C. liter

Unit used to measure temperature.

a. Kelvin
b. second
c. gm/cm³

Unit used to measure density

a. Kelvin
b. second
c. gm/cm3

Amount of space occupied by an object

A. mass
B. volume
C. distance

The amount of matter in an object.

A. mass
B. volume
C. distance

The mass per unit volume of a material

A. density
B. mass
C. distance

A unit obtained by combining different SI units.

A. constant
B. derived unit
C. label

Visual display of information

A. data
B. model
C. graph

Shows change over time.

A. line graph
B. bar graph
C. circle graph

Located on the horizontal (x) axis.

A. dependent variable
B. independent variable

Located on the vertical (y) axis.

A. dependent variable
B. independent variable

Graph useful for comparing information collected by counting

A. line graph
B. bar graph
C. circle graph

Graph that shows how a fixed quantity is broken down into parts.

A. line graph
B. bar graph
C. circle graph