Science grade 8

physical properties

A characteristic of a pure substance that can be observed without changing it into another substance.

chemical properties

Characteristic that cannot be observed without altering the substance

mass

Amount of matter in an object

weight

A measure of the force of gravity on an object

volume

A measure of the size of a body or region in three-dimensional space

density

Mass / Volume

state of matter

(chemistry) the three traditional states of matter are solids (fixed shape and volume) and liquids (fixed volume and shaped by the container) and gases (filling the container)

solid

Definite shape and volume

gas

A state of matter with no definite shape or volume

conductivity

The ability of an object to transfer heat or electricity to another object.

magnetism

A property of some materials in which there is a force of repulsion or attraction between certain like and unlike poles

texture

The feel, appearance, or consistency of a surface, substance, or fabric.

solubility

A measure of how much solute can dissolve in a given solvent at a given temperature.

combustibility

A measure of how easily a substance will set on fire, through fire or combustion

mallability

how easy you can bend something

ductility

the ability of a substance to be drawn, pulled, or extruded through a small opening to produce a wire

melting point

The temperature at which a solid becomes a liquid

odor

smell

flammability

Ability to burn

oxidation

A chemical change in which a substance combines with oxygen, as when iron oxidizes, forming rust

electrical conductivity

How well a substance allows electricity to flow through it.

thermal conductivity

the rate at which a substance transfers heat

pH

acidic or base

temperature

A measure of how hot or cold something is.

cohesion

Attraction between molecules of the same substance

adhesion

Force of attraction between different kinds of molecules

freezing point

The temperature at which a liquid changes into a solid

boiling point

The temperature at which a liquid changes to a gas

condensation point

is the change of the physical state of matter from gas phase into liquid phase.

magnetization

magnetization If a mixture contains magnetic particles ex. iron, steal the particles can be separated from the mixture with a magnet.

surface tension

A measure of how difficult it is to stretch or break the surface of a liquid

luster

The way a mineral reflects light

viscosity

A liquid's resistance to flowing

elasticity

The ability of a material to bounce back after being disturbed

tensile strength

A measure of how much stress from pulling, or tension, a material can withstand before breaking.

texture

The feel, appearance, or consistency of a surface, substance, or fabric.