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Science Lesson 1 & 2

TermDefinition
Matter Anything that has volume and mass.
Pollutant A substance that can make air, soil, or water harmful to organisms and structures.
Volume A measure of how much space something takes up.
Mass The amount of "stuff" something contains.
Atom The basic building block of matter.
Molecule A combination of two or more atoms.
Compound A pure substance made up of two or more different elements.
Pure Substance A type of matter composed of a single type of particle and always has a distinct, predictable properties.
Physical Change A change in the form or appearance of a matter, but not in it's composition.
Chemical Change A change in the composition of a sample matter.
Photosynthesis The process through which green plants use the energy of sunlight to make food and oxygen.
Created by: Tatsu
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