1. Chapter 1.2 Physical Science
Measuring Matter
Chapter 1.2 Physical Science

2. Weight
There are two ways to measure how much matter an object has-weight and mass.
Weight is a measure of the force of gravity on you.
You weigh less on the moon because the force of gravity is weaker
Weight is good for everyday use, but scientists dislike using weight because it is not consistent. Scientists prefer to measure mass.

3. Mass
Unlike weight, an objects mass will not change if the force of gravity changes
Scientist measure mass using the International System of Units (SI)
Gram, miligram, kilogram

4. Volume Volume is the amount of space that matter occupies.
Volume of Cube=length x width x height
Units of volume:
Cubic centimeters (cm3)
Liter (L)
Milliliter (mL)
How can you measure the volume of an object with an irregular shape?

5. Density
Density is a measurement of how much mass is contained in a given volume.
Units:
g/ cm3
g/mL
g/L

6. Sample Problems pg 29

7. Vocabulary Weight Mass International System of Units (SI) Volume
density

8. Explore Learning
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