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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 |