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Ch.1 Intro to Matter

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
Created by: cc2671