Unit 1 Chemistry Vocabulary Worksheet

A method used to ask and answer questions about the world and guide investigations
This summarizes the results of many experiments/observations without explaining them; often mathematical relationships
Anything that has mass and takes up space
An extensively tested explanation that cannot be proved, but seems to hold true given our current understanding
Variables that remain constant in an investigation/experiment
Factors in experiments that a scientist purposefully changes
The outcomes/results of an experiment that can change based on the manipulated variable
The study of the composition of matter and the changes matter undergoes
The amount of matter that an object contains
Matter with a uniform and definite composition
State of matter with a definite shape and volume; tight particles
A state of matter with an indefinite shape and definite volume
State of matter with indefinite shape and indefinite volume
Gaseous state of a substance that is usually a solid/liquid at room temp.
When matter is altered without disturbing its chemical composition
A blend of two or more substances
A mixture that is not uniform
A mixture that is uniform
The simplest forms of matter
Combinations of two or more elements; can be split
During this process, one or more substances change into new substances
Starting substances in a chemical reaction
Substances formed in a chemical reaction
The ability of a substance to undergo a chemical reaction
In any physical change or chemical reaction, mass is neither created nor destroyed; it is conserved.
The measure of the average KE of molecules