Physical Science Physical Science Ch. 1 - Studying ScienceCh. 1 - Studying Science

Vocabulary

1. Data – information from – information from which analyses and which analyses and

conclusions can be made; to conclusions can be made; to gather information.gather information.

2. Controlled experiment – an experiment with two groups: an experimental group and a control group.

3. 3. ConstantConstant – the factor that – the factor that is kept the same in a is kept the same in a

controlled experiment.controlled experiment.

4. Variable – the factor that is changed in a controlled experiment.

5. 5. MeterMeter – the basic SI unit of – the basic SI unit of length; abbreviated as m.length; abbreviated as m.

6. Volume – the amount of space occupied by an object or substance.

7. 7. Cubic meterCubic meter – the basic SI – the basic SI unit of volume; space unit of volume; space occupied by a cube occupied by a cube

1 m x 1 m x 1 m; abbreviated 1 m x 1 m x 1 m; abbreviated by mby m³.³.

8. Liter – a metric unit of volume; a convienient unir for everyday use; abbreviated as L.

9. Mass – the scientific measurement of the amount of matter that an object contains; abbreviated as m.

10. 10. KilogramKilogram – the basic SI – the basic SI unit of mass; abbreviated as unit of mass; abbreviated as

kg.kg.

11. Density – the measure of how much mass exists in a

given volume; density = mass ÷ volume.

12. 12. Scientific notationScientific notation – the – the method of expressing a very method of expressing a very

large or very small number by large or very small number by multiplying a number between multiplying a number between

1 and 10 by some power of 1 and 10 by some power of 10.10.