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Scientific Inquiry 2
Data collection
| Term | Definition |
|---|---|
| triple beam balance | "old school" tool used to measure mass of an object |
| electric balance | "new school" tool used to measure mass of an object |
| thermometer | tool for measuring and indicating temperature |
| grams | unit of measurement for mass |
| fahrenheit/celcius | unit of measurement for temperature |
| ruler | tool for measuring length |
| meter | unit of measurement for length |
| graduated cylinder | tool used to measure volume |
| liter | unit of measurement for volume |
| accuracy | how close a measurement is to the true or accepted value |
| precision | how close a group of measurements are to each other |
| estimate | an approximation of a number based on a reasonable assumption |
| experimental error | difference between a measurement and the true value, or between two measured values |
| percent error | way to determine how accurate an experimental value is |
| line graph | shows how numbers have changed over time |
| bar graph | shows numbers that are independent of each other |
| scatter plot | shows how much one variable is affected by another |
| correlation | relationship between two variables |
| pie chart | shows how a whole is divided into different parts |
| observational study | conducting research without manipulating anything |