| A | B |
|---|
| life science | the study of living things |
| scientific methods | the ways in which scientists follow steps to answer questionsand solve problems. |
| hypothesis | a possible explanation or answer to a question. |
| controlled experiment | tests only one factor at a time and consist of a control group and one or more experimental groups. |
| variable | a factor that changes in an experiment in order to test a hypothesis. |
| model | a representation of an object or a system. It is a pland, pattern, representation, or description designed to show the structure or workings of an object, system, or concept. |
| theory | an explanation that ties together many hypotheses and observations |
| law | a summary of many experimental results and observations; a law tells how things work. |
| technology | the application of science for practical purpose; the use of tools, machines, materials, and processes to meet human needs. |
| compound light microscope | an instrument that magnifies small objects so that they can be seen easily by using two or more lenses |
| electron microscope | a microscope that focuses a beam of electrons to magnify objects |
| volume | a measure of the size of a body or region in three-dimensional space. |
| area | a measure of the size of a surface or region |
| mass | a measure of the amount of matter in an object |
| temperature | a measure of how hot (or cold) something is. |
