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# Physical Science Ch. 1 Vocab

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Be sure to review the vocab it will be on your exam!

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### Physical Science Ch. 1 Vocab

1. 1. Physical Science Ch. 1 - Studying Science <ul><li>Vocabulary </li></ul>
2. 2. 1. Data – information from which analyses and conclusions can be made; to gather information.
3. 3. <ul><li>2. Controlled experiment – an experiment with two groups: an experimental group and a control group. </li></ul>
4. 4. 3. Constant – the factor that is kept the same in a controlled experiment.
5. 5. <ul><li>4. Variable – the factor that is changed in a controlled experiment. </li></ul>
6. 6. 5. Meter – the basic SI unit of length; abbreviated as m.
7. 7. <ul><li>6. Volume – the amount of space occupied by an object or substance. </li></ul>
8. 8. 7. Cubic meter – the basic SI unit of volume; space occupied by a cube 1 m x 1 m x 1 m; abbreviated by m ³.
9. 9. <ul><li>8. Liter – a metric unit of volume; a convienient unir for everyday use; abbreviated as L. </li></ul>
10. 10. <ul><li>9. Mass – the scientific measurement of the amount of matter that an object contains; abbreviated as m. </li></ul>
11. 11. 10. Kilogram – the basic SI unit of mass; abbreviated as kg.
12. 12. 11. Density – the measure of how much mass exists in a given volume; density = mass ÷ volume.
13. 13. 12. Scientific notation – the method of expressing a very large or very small number by multiplying a number between 1 and 10 by some power of 10.