1. Objectives Which instruments measure what units Which instruments measure what units Words of comparison for different measures Words of comparison for different measures Units for the different measures Units for the different measures An idea of the magnitude for each measure An idea of the magnitude for each measure

2. Units of Measure Weight or Mass Capacity or Volume Length or distance

3. Weights or Mass Instrument you would use Scales Bathroom Scales Kitchen scales

4. Weights or Mass Comparison words you would use Weighs more Weighs less Heavier Lighter

5. mg = milligram mg = milligram cg = centigram cg = centigram g = gram g = gram kg = kilogram kg = kilogram t = ton t = ton Units of Weights or Mass lightest heaviest

6. What are the units used for the weights of these items? a contact lens a tea bag a packet of pasta a dog jumbo jet mg or cg g or kg kg t cg or g

7. Capacity or volume Instruments you would use Measuring jug Measuring spoons Measuring cup Something to hold liquid with a gauge

8. Capacity or volume Comparison words you would use The jug holds more than the cup The spoon holds less than the bowl A smaller engine A bigger engine

9. Units for capacity or volume ml = millilitres ml = millilitres cl = centilitres cl = centilitres l = litres l = litres kl = kilolitres kl = kilolitres Holds least Holds most 5 ml spoon 30 cl cup 330ml or 33cl 5 litres

10. What are the units used for the capacity of these items? spoon of cough mixture glass of juice jug of water petrol tank on a car petrol tank of a cruise ship ml ml or cl l or cl l kl

11. Length or distance Instrument you would use Tape measures Rulers

12. Length or distance Comparison words you would use Taller Shorter Deeper end Shallower end Narrow road Wide road Short Long Higher Lower

13. Units for length or distance mm = millimetres cm = centimetres m = metres km = kilometres shortest longest Width of a finger nail Length of a finger Depth of the lake Distance to Mars

14. What are the units used for these items? An length of an ant The wingspan of a butterfly The depth of the pool The height of Everest mm cm m km

15. Other measures Temperature Thermometer Thermometer Degrees Celsius (˚C) Degrees Celsius (˚C) Hotter – Colder Hotter – Colder Higher – Lower Higher – Lower Warmer - Cooler Warmer - Cooler ˚C Water freezes at 0˚C ˚C Water boils at 100˚C

17. Other measures - time Hours, minutes, seconds Hours, minutes, seconds Days, weeks, months, years Days, weeks, months, years Some unitsInstrument Clock, watch, stop watch, sun dial Clock, watch, stop watch, sun dial Calendar, diary Calendar, diary Words Fast, slow, on-time Fast, slow, on-time early, late early, late long, short long, short