1.2 Amount of Space Occupied by Matter Lesson 1.2
What units are used to express the amount of space occupied by matter?
- Scientists use the International System of Units to measure the properties of matter.
- The system is abbreviated "SI", after its French name, Systeme International d'Unites.
- The SI unit for mass is the kilogram (kg). The gram (g) is the smaller unit.
- A nickel has mass of about 5 grams, and the mass of a baseball is about 150 grams.
- The amount of space that matter occupies is called its volume.
- Solids, liquids, and gases all have volume.
- The volume of rectangular objects, such as a brick, can be found by multiplying the measurements of length, width, and height.
- When you multiply these measurements, you must multiply the units as well as the numbers.
Common Units of Volume
- A common unit of volume is the cubic centimeter (cm3).
- Other units of volume include the liter (L) and the milliliter (mL).
- A millimeter is exactly 1 cubic centimeter.
- There are 1,000 millimeters in one liter.