Vocabulary: Earth's Changing Crust

fault:
 a crackin the cust, whose sides show evidence of motion .

Geologist:

a scientist who studies earth .

magma :

hot, molten rock deep below earth's surface .

lava:

magma than reaches earth's surface.

weathering :
the breakimg down of rocks into smaller pieces.

erosion:

the picking up and caying away of pieces of rock .

deposition:

the dropping off of bits of eroded rock.

meteorite:
a chunk of rock from space that strikes a surface (such as Earth o the Moon).

Vocabulary:Matter and Energy

Kinetic energy = The energy of a moving object .

potential energy = energy stoed   in an object or material.ç

conduction = movement of energy from a hot object that comes into contact with a cooler object; the material remains in  place .

convection = movement of energy by the flow of matter from place to place .

radiation= movement of energy  in the fom of waves that can travel through empty space .

wet cell batterry= a battery containing liquid solution that produces the electric current.

dry cell battery = a battery that uses " dry chemicals" to poduce an electic current.

Vocabulary: Chemical Changes

1. physical change =  a change in size, shape, or state, without forming a new substance .

2.chemical change= a change in matter that produces a new substances with  different properties from the original .

3.chemical reaction = a chemical change of original substances into one or more new subtances

4.reactant = one of the oiginal substances before a chemical reaction takes place .

5.product= one of the new subtances produced when a chemical  reaction takes place .

Vocabulary:Mixtures and Solutions

mixture= two or more parts blended together yet keeping their own properties and not turning into a new substance.

solution = a mixture in which substances are completely  blended so that the properties are the same throughout and the substances stay blended.

suspension = a mixtue of substances that separate upon standing .

colloid=particles (or droplets) large enough to block out light spread throughout another substance .

emulsion = a liquid spread through a gas .

aerosol= liquid drops or solid particles spread through a gas .



gel = a solid spead though a liquid .



foam= a gas spread though a liquid or solid .





Vocabulary: Solid, Liquid , and gases

state of matter=any of the forms matter can exist in.

melting point = the temperature at which a solid changes state into a liquid .

boiling point= the temperature at which a liquid changes state into a gas.

freezing point = the temperature at bwhich a liquid changes state into a solid .

Picture

state of matter

melting point

boiling point

freezing point

Vocabulary:Invisible Light

electromagnetism= The production of magnetism by electricity and the production of    electicity by magnets .





electromagnetic spectum = all the wavelengths of visible and invisible light in a short (gamma rays) to long(radio).

Laser= a device that produces a thin stream of light of just a few  close wavelengths .

Vocabulary:Colors of light

prism = a cut of piece of clear glass (or plastic) with two opposite sides in the shape of a triangle or other geometric shape.

spectrum = a band of colors produced when light goes through a prism.



primary color = red , green, or blue ; mixing these colors can produce all the colors absorbs one primary color of light and reflects the other two .

primary pignent = magenta , cyan , yellow ; material with any of these colors absorbs one primary color of light and reflects the other two.