| A | B |
|---|
| Physical Science | the study of matter and energy |
| Chemistry | the study of the forms of matter and how they interact |
| Physics | the study of how energy affects matter |
| Scientific Method | a series of steps that scientist use to answer questions and solve problems |
| observation | any use of the senses to gather information |
| hypothesis | a possible explanation or answer to a question |
| data | any piece of information acquired through experimentation |
| theory | a unifying explanation for a broad range of hypotheses and observations that have been supported by testing, explains why |
| law | a summary of many experimental results and observations, describe how things work |
| model | a representation of an object or system |
| meter | SI unit for length |
| volume | amount of space that something occupies |
| liter | SI unit for a liquids volume |
| mass | amount of matter that something is made of |
| kilogram, kg | SI unit for mass |
| temperature | measure of how hot or cold something is |
| degrees Celcius | SI unit for temperature |
| area | a measure of how much surface an object has |
| density | the amount of matter it has in a given space |
| technology | the application of knowledge, tool, and materials to solve problems and accomplish tasks |
| prediction | a statement about what may happen in the future based on prior experience or knowledge |
| repeated trials | the number of times procedures are repeated during a scientific investigation |
| controlled variables | the factors that remain the same in the experiment to test the effect of the independent variable on the dependent variable |
| dependent variable | the factor that changes due to the independent variable |
| independent variable | the factor the scientist changes to see if a change occurs during the investigation |
| graduated cylinder | a tall, narrow container used to measure the volume of liquids |
| quantitative observations | characteristics of objects that can be recorded by using numbers |
| qualitative observations | characteristics of objects that can NOT be recorded numerically |
| conclusion | a decision made after considering relevant facts and evidene |
| inference | a conclusion drawn from evidence or reasoning |
| law | a descriptive generalization about how some aspect of the natural world behaves under stated conditions |
| scientific critique | an analysis of the strengths and weakness of a scientific investigation |
