Term Definition
Matter Anything that has volume (takes up space)and mass.
Pollutant A substance that can make air, soil, or water harmful to organisms.
Volume A measure of how much space something takes up.
Mass The amount of matter Something contains.
Atom The basic building block of 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 that composed of a single type of particle and always has distinct predictable
Physical change A change in the
Chemical change A change in the composition or chemical makeup of a sample of matter. A chemical change is also known as a chemical reaction.
Photosynthesis The process through which green plants use the energy of sunlight to make food and oxygen.
Qualitative Data Data that is acquired through observation not evidence.
Quantitative Data Data that is acquired through evidence.