Science Vocab Unit 2

Front 1

Amorphous

Back 1

a non-crystalline substance, of no definite form, with no definite melting point

Front 2

Axis

Back 2

On a line graph, one of two number lines that intersect at zero

Front 3

Bar Graph

Back 3

The type of graph on which straight lines, or bars, are used to present a picture of the data

Front 4

Best fit line

Back 4

A line on a graph that connects some but not all the points and has half the points on either side

Front 5

Binary Classification

Back 5

Grouping objects on the basis of whether or not they have a certain property

Front 6

Boil

Back 6

The process in which bubbles of gas form within a liquid that has been heated to a high enough temperature

Front 7

Calibrate

Back 7

To mark a measuring instrument with graduations so that it can be compared to a standard of measurement

Front 8

Classified

Back 8

Grouped on the basis of given properties

Front 9

Condensation

Back 9

The physical process by which a vapor becomes a liquid or solid; the opposite to evaporation

Front 10

Crystal

Back 10

The special shape or form produced by the arrangement of particles in a solid

Front 11

Crystaline

Back 11

A body that is bounded by plane surfaces that are systematically arranged in a pattern determined by internal structure. A substance with a definite melting point

Front 12

Data

Back 12

Measurements and observations used to solve a problem

Front 13

Data Table

Back 13

An arrangement of data in rows or columns for easy reference

Front 14

Dependent Variable

Back 14

a variable whose numerical value depends upon another variable

Front 15

Diffusion

Back 15

The natural movement within gases and liquids that spreads out odors and colors

Front 16

Dynamic Equilibrium

Back 16

Balance between two opposing continuing processes

Front 17

Equilibrium

Back 17

balance

Front 18

Evaporation

Back 18

The change of phase from the liquid state to the gaseous state

Front 19

Extrapolating

Back 19

Predicting information beyond know data points on a graph

Front 20

Fractional Distilation

Back 20

The process of driving off gas, or vapor, from a liquid, as by heat, and the condensing of those gases in a retort or still

Front 21

Graph

Back 21

a picture of data

Front 22

Histogram

Back 22

Another name for a bar graph

Front 23

Horizontal Coordinate

Back 23

the X value on a line graph

Front 24

Independent Variable

Back 24

A quantity which is given different known values which often result in changes in value of the dependent variable

Front 25

Interpolation

Back 25

Predicting or estimating data between known points on a graph

Front 26

Kinetic particle theory

Back 26

The model used to explain changes of state of materials and the motion of particles

Front 27

Kinetic theory of matter

Back 27

The model that states all materials are made up of particles that are in constant motion

Front 28

Line Graph

Back 28

A graph drawn on a rectangular grid, with number lines drawn at right angles to each other

Front 29

Mixture

Back 29

Matter that consists of two or more substances and can be separated by physical means

Front 30

Model

Back 30

Anything, either physical or mental, that is used to explain the unfamiliar in terms of something familiar. Models
are often used to explain observations, predict behaviors, and visualize objects that cannot be directly observed

Front 31

Particle theory of matter

Back 31

The model that states that all materials are composed of small particles

Front 32

Phase

Back 32

A particular condition or appearance of matter; as the solid phase, the liquid phase or the gaseous phase

Front 33

Rotational Motion

Back 33

The turning or movement of a molecule about its axis. It occurs in liquids and gases

Front 34

Scale

Back 34

Anything that is graduated that is used as a measurement of quanity

Front 35

Scientific Method

Back 35

The set of skills used to solve problems in an orderly way

Front 36

Temperature

Back 36

The degree of hotness or coldness as indicated on a definite scale

Front 37

Thermal Expansion

Back 37

The expansion of a substance due to heat

Front 38

Translational Motion

Back 38

The motion that is characteristic of particles in the gaseous state and occurs to a limited degree
in liquids. The particles change their positions with respect to each other

Front 39

Vertical Coordinate

Back 39

the Y value on a line graph

Front 40

Vibrational Motion

Back 40

An oscillating or back-and-forth motion of a molecule. It is the only type of particle motion in the solid state of matter