Earth Science Chapter 2

Dark Matter

Invisible matter used to help describe the amount of gravity needed to create the universe in the secular model.

Matter

Anything that has mass and takes up space/volume; a physical substance.

Operational Defintion

States the tests something has to pass to meet the terms of the defintion.

Composition of Matter

What matter is made of.

Physical Properties of Matter

How matter appears of acts.

Organic Matter

Matter that comes from living things.

Inorganic Matter

Matter that comes from nonliving things.

Pure Substance

A material made of only one mind of element or compound; NOT a mixture.

Mixture

A physical combination of 2 or more substance. A mixture can be separated by physical means.

Ways to separate a mixture

Filtering, Using a Magnet, Evaporation, or Crushing.

States of Matter

(Solid, Liquid, Gas, or Plasma) The physical form of matter described by its physical characteristics. The state of a pure substance heavily depends on its temperature. (Also called Phase of Matter)

Temperature

The hotness or coldness of a substance, stated in degrees; a measure of the average kinetic energy of the particles of a substance. (Fahrenheit, Celsius, or Kelvin)

Solid

A rigid state of matter in which the particles align in a fixed arangement. Unchanging shape & volume.

Liquid

A fluid state of matter in which the particles are free to move but are held close to each other. Unchanging Volume but a Changeable Shape

Gas

Fluid state of matter in which the particles move so fast and are so far apart as to have little interaction with each other. Changeable shape & volume.

Plasma

Fluid state of matter made of extremely high-temperature ionized particles. Changeable shape & volume. Most common state of matter.