| A | B |
|---|
| chemistry | science that deals with the matter of the universe and the changes they undergo |
| scientific method | process used to make and explain discoveries and to solve problems |
| observation | noting a measurement or quality of some substance or process |
| hypothesis | possible explanation for a problem or question |
| experiment | method for collecting data to evaluate a hypothesis |
| theory | explanation that has stood up to much testing and investigation |
| natural law | summary of observations |
| measurement | involves a number and a unit |
