| A | B |
|---|
| An object or device used to perform a task | tool |
| A possible answer to a question; an educated guess | hypothesis |
| observations and facts gained from experiments | evidence & data |
| tests run to prove answers to questions | experiments |
| A conclusion drawn from data and observation | inference |
| using your senses or tools to come up with facts or questions | observation |
| a set of step-by-step instructions for how to perform a test | procedures |
| Each time you test something in an experiment | trial |
| objects or ideas that represent other things | models |
| variable that stays the same in an experiment | controlled |
| variable that is measured or observed in an experiment | dependent |
| variable that you change in an experiment | independent |
| Organized ways to answer questions and solve problems | scientific methods |
| Describes objects that have length, width, & height | three-dimensional |
| Describes objects that only have length & width | two-dimensional |
| encyclopedias, books, magazines, and the Internet; used for research | reference materials |
