matter
Terms
undefined, object
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- gas
- state of matter whose molecules are widely spaced, move freely at high speed and expand to occupy all space available
- element
- a pure substance made of only one kind of atom
- solid
- state of matter whose molecules vibrate in place, with little space in between, arranged in a regular pattern
- liquid
- matter whose molecules are close to one another but can move freely and slide past one another
- properties
- characteristics we can observe that help to describe the substance
- matter
- anything that physically exists
- molecule
- two or more atoms chemically combined
- chemical formula
- chemical recipe for a substance; letters and numbers that tell how many and what kind of atoms make up the substance
- states of matter
- forms of matter such as solids, liquids, gases
- substance
- a particular kind of matter
- atom
- smallest building block of matter, smallest amount of an element