| A | B |
|---|
| a ______ responds in a particular way to the experiment? | control |
| The _________ is plotted on the vertical axis of the graph. | dependent variable |
| The dependent variable responds to changes in the _______. | independent variable |
| The number of protons in an atom is called its _____. | atomic number |
| The number that chemists add after the elements name is the _________. | mass number |
| Atoms that have the same number of protons but different number of neutrons are called ______. | isotopes |
| Burning is an example of _________. | chemical property |
| ______ is a law that applies throughout the universe, in all branches of science. | law of conservation |
| A _______ never changes. | constant |
| After a number of experiments, the scientist may be able to summerize the results in a ______. | natural law |
