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Ch.1 Intro to Matter
| Question | Answer |
|---|---|
| matter | anything that takes up space |
| phases of matter | solid, liquid, gas |
| element | building blocks of matter |
| density | mass divided by volume |
| physical change | a change in state of matter |
| an object will float in water | if it has a density of less than 1.0 |
| element | cannot be broken down into any other substance |
| symbol | one or two letter that represent the element |
| compound | substance made of two or more elements that are chemically combined |
| mixture | made from two or more substances, elemetns, compounds, or both that are NOT chemically combined |
| weight | a measure of the force of gravity |
| mass | a measure of the amount of matter - never changes |
| volume | the amount of space that matter takes up |
| density | mass/volume |
| graduated cylinder | used to measure the volume of irregular objects in water |
| balance | used to measure the weight or mass of objects |
| properties of matter | 1. color2. hardness3. texture4. flammability5. mass6. density |
| chemical change | a new substance is formed - a chemical reaction takes place |
| physical change | no new substance is formed - no reaction takes place except in a state of matter |
| volume | length x width x height |
| viscosity | a resistance to flow |
| conductivity | letting heat or electricity pass through |