Metric System
standard measurement system based on the number 10
International System of Units (SI)
version of metric system used by scientists
What does using SI as the standard system of measurement allow scientists to do?
compare data and communicate with each other about the results of scientific investigations
Mass
measure of the amount of matter in an object
What is the basic SI unit of measuring mass?
kilogram (kg)
Weight
measure of the force of gravity acting on an object
Volume
amount of space taken up by an object or substance
What is the basic SI unit for measuring volume
cubic meter (m3)
Meniscus
curve of the liquid
Density
measure of how much mass is contained in a given volume
What is the SI unit for density?
kilograms per cubic meter (kg/m3)
How do scientists commonly express density?
grams per milliliter (g/mL) or grams per cubic centimeter (g/cm3)
What is the SI unit to measure time?
seconds (s)
What is the official SI unit for temperature?
kelvin (K)
What does the Kelvin scale start at?
0 K (absolute zero) and only goes up
What is the basic SI unit for measuring length?
meter (m)
What is the basic SI unit for measuring weight?
measure of force called the newton (N)