A SUBSTANCE is a material that has constant composition, regardless of its source, also said to be pure.
This is opposed to an impure sample one with variable composition which would be called a MIXTURE.
subutance
A science that deals with substance and element is the fictional science
Pure implies that a substance is without any impurities.
Listen in Science people.
I don't know it was a science question for school
Aluminum does react with fluorine gas (which is the most corrosive substance known to science).
substance that is illegal
Natural gas is a physical substance.
Chemistry is a science; chemical properties are specific for each substance.
We created a substance in substance in science class.
A science that deals with substance and element is the fictional science
material, quantity, amount, element, substance, constituents
Physical science
In science, insoluble refers to a substance that does not dissolve in a particular solvent. This can often be due to differences in the polarity of the substance and the solvent.
substance, you are probably looking for pure substance, you 8th grade science weasel xD
Thermal EnergySource: Science Explorer-Prentice Hall-Physical Science
A medium is a substance in which a process occurs.
a substance that results from a chemical change