1. Measurement

2. Standards of Measurement
Standard- an exact quantity (amount) people agree to use for comparison.
Measurements must have a number and a unit.
Scientists, and the rest of the world use the SI system of measurement. (Based on multiples of 10)
In the USA we use the English System of measurement.

3. What do we Measure? Length- the distance between two pts.
Mass - the amt. of matter in an object.
Volume- the amt. of space something occupies.
Density- the amt. of particles packed into a space.
Temperature- the amt. of energy in an object.
Time- how long it takes for something to happen.

4. Tools we Use for Measuring
Length- metric ruler
Mass- triple beam balance
Volume- graduated cylinder
Density- triple beam balance and graduated cylinder,
Temperature- thermometer
Time- clock

5. Standard Units of Measurement
Length- meter
Mass- grams
Volume- ml, cm3
Density- g/ml, or g/cm3
Temperature- Celsius, or centigrade (degrees)
Time- seconds