1. Measurement
A way to describe the world with numbers.

2. Measurement
Can answer:
How much, how long, or how far?

3. Everyday Measurements

4. Tools of Measurement
Stopwatches
Meter-sticks
Balances
Thermometers

5. Metric System

6. International System (SI)
The SI system is the accepted system of measurement.
Units are in multiples of 10.
Which of these do not belong in the metric system?

7. Metric System We use these prefixes the most: kilo centi milli kilo
kilo
hecto
deca
Base unit
meter
gram
liter
deci
centi
milli

8. Converting Units

9. Length
Meter is basic unit.

10. Length
1000 meters = kilometer

11. Length

12. Length
Use a centimeter to measure the length of a pencil.

13. Length
1 inch = 2.54 cm

14. Length
100 centimeters in a meter.

15. Length
1000 millimeters in a meter.

16. Converting Units Length

17. Mass Amount of matter in an object. More matter = more mass.
Electronic Balance
Amount of matter in an object.
More matter = more mass.
Kilogram (kg) is used for large objects.
Gram (g) for small objects.
Triple Beam Balance

18. Mass
Mass is the same no matter where in the universe the object is located.
Weight = pull of gravity.

19. Converting Units: Mass

20. Weight Gravity exerts force on an object. More mass = greater weight
Weight changes depending on location.
Unit = newtons (N)

21. Weight A brick & sponge have the same volume.
Brick has more mass so, it weighs more.

22. Weight

23. Volume
Amount of space something occupies.
L x W x H

24. Volume Height of box = 2 Width = 3 Length = 6 2 x 3 x 6 = 36
36 cubes like the red one would take up
the same amount of space as this box.

25. Volume of Solids
Unit is meters cubed
cm3
L X W x H

26. Liquid Volume Liters & milliliters are the units.
Meniscus is the curve at the surface of a liquid.
Read at lowest point.

27. Volume of Irregular Shaped Solids
Use water displacement.
liters or mL rather than cm3

28. Converting Units Volume

29. Converting Units (Volume)
45 mL = 4.5 centiliters cL)
45 mL = .45 deciliters (dL)
45 mL = liters (L)
45 mL = dekaliters (dkL)
45 mL = hectoliters (hL)
45 mL = kiloliters (kL)
kilo
hecto
deca
Base unit
meter
gram
liter
deci
centi
milli

30. Temperature
How hot or cold a substance is.
We use degrees Celsius ºC.

31. Temperature
Water freezes at 0º C.
Water boils at 100º C

32. Measuring Temperature

33. Density Amount of matter in a given volume.
measure mass & volume of an object to find density.
Unit = g/mL3

34. Density