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Chemistry vocab
core chemistry words to know
| Term | Definition |
|---|---|
| Matter | anything that takes up space and has mass |
| Physical Properties | properties that help identify a substance that stays the same, like color, texture, shape, hardness, mass, volume, sound, density, size, smell, taste |
| Phases or States of Matter | solid, liquid, gas |
| Solid | particles are close, with definite volume and shape, and move slow |
| Liquid | particles are farther apart, have definite volume, but not definite shape, and move faster |
| Gas | particles are far apart, have no definite shape or volume, and move fast |
| Particle Theory of Matter | all matter is made of particles; particles of a certain substance are all the same; particles are attracted together; and move all the time |
| Element | basic substance of matter; can't be changed by chemical process, heating, or electricity |
| Atom | building block of elements (made of negative electrons, positive protons, and no charge neutrons) |
| Periodic Table | chart that shows all the elements, organized by certain properties |
| Molecule | smallest part of a compound |
| Compound | a substance with more than one kind of element, like water...H2O |
| Chemical Symbol | abbreviation for an element |
| Chemical Formula | abbreviation for a compound (numbers show how many atoms) |
| Physical Change | properties change, but the substance stays the same |
| Chemical Change | changes into a new substance |
| Mixture | two or more substances around each other mixed, but not chemically joined |
| Solution | one substance dissolved in another |
| Chemical Equation | reaction equation with symbols and elements (reactants --> products) |
| Organic Compounds | contain carbon, the building blocks of molecules necessary for life |
| Inorganic Compounds | don't contain carbon, nonliving things (water and minerals) |
| Protein | complex molecule, long amino acid chains, build and repair body, protect from disease, and speed chemical reactions (C-H-O-N) |
| Carbohydrates | give energy and store it, simple sugars, and complex starches (C-H-O) |
| Lipids | fats, don't mix with water, give energy and store it, only used when no carbs & twice the energy |
| Nucleic Acids | large molecule, stores and processes information in cells to do activities, DNA stores and copies, RNA carries copied message |
Created by:
jpeteric
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