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Measurement
Science
Term | Definition |
---|---|
Measurement | A repeatable observation of a quantity that includes a number and a unit |
Estimate | A reasonable guess at a quantity based on an observation |
Precision | Refers to how detailed or exact a measurement is |
Accuracy | Refers to the correctness of a measurement |
SI System | Stands for International System. Has a base unit. Prefixes can be added. All fractions and decimals are powers of 10 |
Length | the longest extent of anything as measured from end to end |
Temperature | How hot or cold something is |
Mass | How much matter is in an object |
Volume | The amount of space that an object takes up |
Displacement | The amount of liquid that rises when measuring liquid volume |
Meniscus | Water in a graduated cylinder that has a curved surface |
Density | Mass/Volume= Density. How closely molecules are packed together |
Bar Graph | Uses vertical lines to show relationship among data |
Line Graph | Uses lines to show relationship between 2 thins. Data changes over time |
Pie Graph | Uses a circle divided into sections to display data. All parts must add up to %100 |