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Properties of Matter

Definitions

TermDefinition
Substance a single kind of matter that is pure and always has a specific makeup and a specific set of properties
Physical Property characteristics of a pure substance that can be observed without changing it into another substance(can describe using senses)
Chemical Property is a characteristic of a pure substance that describes its ability to change into different substances. (Rust)
Mass the measurement of the amount of matter in an object
Density the mass of a material in a given volume
weight is a measure of the force of gravity on you
Volume the amount of space that matter occupies
Physical Change any change that alters the form or appearance of matter but does not make any substance of the matter into a different substance: adding food coloring to water/crushing a can
Chemical Change a change in matter that produces one or more new substances, it undergoes a chemical reaction, the new substance has properties completely different from the original substances: when hydrogen peroxide is poured on a cut it breaks down into water & oxygen
Law of Conservation of Mass/matter matter is not created or destroyed in any chemical or physical change, the amount of mass is the same before and after a change
Heterogeneous Mixture you can see the individual parts that make up the substance and it can easily be separated, not evenly distributed
Homogeneous Mixture you cannot see the individual parts that make up the substance and it cannot be separated physically, evenly distributed
Thermal energy the total energy of all the particles in an object
energy the ability to do work or cause change, every chemical or physical change in matter includes a change in energy
Temperature the measure of the average energy in motion of particles that make up matter
Endothermic a change in a substance when energy is taken in: icebergs melting into the ocean
Exothermic an change in a substance when energy is released: combustion, of warming your hands near a wood fire
Kinetic Energy is energy of matter in motion, the kinetic energy of particles contributes to the thermal energy of a substance
Potential Energy is energy an object has due to its position, it is increased with height and weight
Created by: parhamscience
 

 



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