Mix Of Flow And Matter Vocab 1

Front 1

Physical Change

Back 1

when matter changes from state to state; no new substance produced (solid – liquid)

Front 2

Chemical Change

Back 2

when original substances are changing into different substances

Front 3

Matter

Back 3

anything that has mass and occupies space

Front 4

Energy

Back 4

the ability to do work

Front 5

Atom

Back 5

tiny particles, behave different depending on pressure and the environment

Front 6

State

Back 6

the condition of physical being of matter (example: solid, liquid, gas)

Front 7

Potential Energy

Back 7

energy that is stored (example: elastic band read to snap)

Front 8

Kinetic Energy

Back 8

energy of motion, three main, vibrational, rotational and translational

Front 9

Solid

Back 9

particles do not move around very much, removing energy from molecules, have definite shape and volume (example: ice)

Front 10

Liquid

Back 10

particles packed pretty close together, not arranged in any structure, slide past each other (flow) fixed volume but not fixed shape (example: water)

Front 11

Gas

Back 11

energy added to molecules start move faster (further away from one another) do not have a fixed volume or shape, tendency to expand (example: water vapour)

Front 12

Plasma

Back 12

electrically charged gas (example: stars, sun, lightning, florescent light bulbs)

Front 13

Bose-Enstien Condenstate

Back 13

absolute zero which is the coolest possible temperature in the universe (-273 degrees Celsius)

Front 14

Condensation

Back 14

the physical change of gas to liquid

Front 15

Evaporation

Back 15

the physical change of liquid to gas

Front 16

Sumblimation

Back 16

the physical change of solid to gas

Front 17

Melting

Back 17

the physical change of liquid to solid

Front 18

Solidification or Deposition

Back 18

the physical change of gas to solid

Front 19

Freezing

Back 19

the physical change of solid to liquid

Front 20

Particle Theory of Matter

Back 20

- All matter is made of particles called atoms
- Atoms are always in motion
- Different substances are made up of different combinations of atoms
- Atoms cannot be created or destroyed, only changed from one form to another

Front 21

Law of Conservation of Matter

Back 21

means that no substance can be created or destroyed; mass of reactants = mass of product

Front 22

Density

Back 22

mass per unit of volume, calculated by dividing the mass of a substance by its volume

Front 23

Volume

Back 23

how much three-dimensional space it occupies

Front 24

Mass

Back 24

how many atoms on in an object (measured on scale)

Front 25

Weight

Back 25

how much the gravitational pull is affecting you (measured on spring scale)

Front 26

Tyndall Effect

Back 26

is an experiment to determine whether a homogenous is a solution or a colloid. It is caused by the reflection of light by small particles in the substance.

Front 27

Paper Chromatography

Back 27

the test used to determine if fluids are pure substances or solutions

Front 28

Homogeneous

Back 28

a mixture in which the different substances cannot be seen (looks as if it is all one substance); then can be sorted into Solution or Colloid

Front 29

Hetergeneous

Back 29

a mixture in which the different substances can be seen; then can be sorted into Mechanical Mixture or Suspension

Front 30

Colloid

Back 30

a cloudy mixture in which the droplets or tiny particles are too small to spread out; a Homogeneous mixture

Front 31

Solution

Back 31

mixture of two or more pure substances that looks like one substance; a Homogenous mixture (sometimes can be a pure substance)

Front 32

Element

Back 32

a pure substance (has to be found on the periodic table of elements)

Front 33

Compound

Back 33

a pure substance of one or two elements

Front 34

Suspension

Back 34

cloudy mixture in which droplets or tiny pieces of one substance are held within another substance; if you leave a suspension undisturbed its parts will usually spread out; a Heterogeneous mixture

Front 35

Mechanical Mixture

Back 35

mixture in which the different substances are easy to see; a Heterogeneous mixture

Front 36

Pure Substance

Back 36

a substance made up of only one kind of matter and has a unique set of characteristics or properties; Elements and Compounds are Pure Substances (solutions can also be a pure substance)