Vocabulary – Chapter 3.2, 3.3, 3.4
1. Conversion - method where a measurement is rewritten using different units
2. Measurement - a quantity that has both a number and a unit
3. Unit – description that follows a number to give it meaning
4. Metric system - measurement system used around the world
5. SI system - measurement system used around the world (System International)
6. Meter – metric base unit for measuring length (or distance)
7. Feet – English unit for measuring length (or distance)
8. Liter – metric base unit for measuring volume
9. Gallon – English unit for measuring volume
10. Gram – metric base unit for measuring mass (or weight)
11. Pound – English unit for measuring mass (or weight)
12. Calorie – metric base unit for measuring energy (heat)
13. Celsius – Metric unit for measuring temperature
14. Fahrenheit – English unit for measuring temperature
15. Kelvin - SI unit for measuring temperature
16. Dimensional analysis - most common method for converting various units of measurement
17. Base unit – metric units that represent measurements counting in the “ones” place (meters, grams, liters,
seconds).
18. Prefix - description that comes before a metric base unit.
19. Numerator – top number of a fraction
20. Denominator – bottom number of a fraction
21. Conversion factor – written expression of 2 different units representing equivalence.
22. Mass - a measure of the amount of atoms an object contains
23. Volume - a measure of the space occupied by a sample of matter
24. Length – a measure of distance between 2 points.
25. Energy – the ability to move matter
26. Temperature - measurement of heat in a substance
27. Joule – SI unit for measuring energy
Vocabulary – Chapter 3.4
1. Density - relationship between an object’s mass and volume; description of compactness
2. Mass - a measure of the amount of atoms an object contains
3. Volume - a measure of the space occupied by a sample of matter
4. Substance - sample of matter with uniform and definite composition
5. Matter - anything that is made of atoms; anything that has mass and takes up space
6. Compact - arranged within a relatively small space
7. Atom - Fundamental building block of matter; retains its identity in a chemical reaction.
8. Element - Specific kind of atom with unique properties, a symbol, and a name
9. Space - distance between 2 objects (container of matter and energy)
10. Solid - state of matter that has a definite shape, definite volume, and is not easily compressed
11. Liquid - state of matter that has an indefinite shape, definite volume, and not easily compressed
12. Sphere – Three dimensional circle (globular) (volume = 4/3πr3)
13. Cube – Three dimensional square (volume = L x w x h)
14. Irregular shape – Three dimensional shape that has no specific name (such as a rock)
15. Milliliter – metric unit for measuring small amounts of volume (not a base unit – contains prefix)
16. Cubic centimeter – metric unit for measuring small amounts of volume - based on 3 measurements (length x
width x height)
17. Abbreviation – written form of a word that has fewer characters (Significant Figure – sig fig)
18. Float - To remain suspended within or on the surface of a fluid without sinking
19. Unit - description that follows a number to give it meaning.
20. Graduation – marking on a measuring tool indicating “how many.”