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LS 2 Vocabulary
Vocab for LS2
Term | Definition |
---|---|
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 distinct, predictable, properties. |
Physical Change | A change in the form or appearance of matter, but not in its composition. |
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 energy of sunlight to make food and oxygen. |