1. Measurement

2. What kinds of things can you measure? Make a list.
Height
Weight (Mass)
Distance
………….
………………
…………………
Are any things on your list similar to each other, can you group them??

3. Important measurements include:
Time
…..
Length -
Distance between two points
Area
Amount of surface
Volume -
Amount of space an object takes up
Mass
Amount of matter in an object
How hot or cold something is
Temperature -

4. Standard we use for comparing measurements
Units
What are they??
Standard we use for comparing measurements

5. Cubit: elbow to tip of finger Span: thumb to little finger
Long, long ago…
Length:
Cubit: elbow to tip of finger
Span: thumb to little finger
Why do some people use miles and inches and other people use centimetres and kilometres??

6. Standard Internationale
Units
Standard Internationale
S.I. unit
S.I. is the scientific unit used by scientists and engineers across the world

7. What instrument do we use to measure temperature?
Thermometer

8. What is the unit for temperature?
degree celsius

9. How do you measure mass? Mass is measured in ________________
Kilograms (kg)

10. What unit do we use to measure time?
seconds
minutes
hours
seconds
S.I. unit for time is __________

11. Length is measured in __________ metres (m).
How can we measure length?
Ruler or metre stick
Opisometer
Trundle wheel
Callipers
Vernier callipers
Length is measured in __________
metres (m).

12. What is the unit for length?
metres
Kilometres (km) = 1000m
Metre (m)= 100cm
Centimetre (cm) = 10 millimetres (mm)

13. What units do we use for measuring very long distances?
kilometre

14. What do we use to accurately measure very short distances?
Callipers

15. Remember! Units m kg Measurement Length - Distance between two points
Time -
Temperature -
Mass -
Amount of matter in an object kg

16. Question to think about!
What would it be like to live in a world without measurement?

17. What do we use to measure curved lines
opisometer

18. How can we measure area? Regular shape Irregular shape
Use a ruler to measure the length of each side. Multiply one side by the other to find the area.
Area = l x b b
Irregular shape
You must know the area of each square on the graph paper.
Use graph paper. Draw around the object and then count the squares inside the lines.
Area is measured in__________________
metres squared (m2).

19. How can we measure volume?b
Regular object
Use a ruler to measure length, breath and height.
Multiply length by breath by height. h
(v = l x b x h)
Irregular object or liquid
Use a measuring cylinder.
How?
Volume is measured in ________________
metres cubed (m3).

20. Remember! Units m m2 m3 kg Measurement Length -
Distance between two points m
Area -
Amount of surface m2
Volume -
Amount of space an object takes up m3
Mass -
Amount of matter in an object kg

21. 1. What do we use to find the volume of an irregular solid?
Review Questions
1. What do we use to find the volume of an irregular solid?
HINT
2. What do we use to find the mass of an object?
HINT