MASS
- a measure of how much something weighs.
- can be measured in grams or kilograms
MEASURING MASS
Using
Kilogram:
The puppy weighs
about 3kg The adult dog weighs
about 12kg
Using
grams
The cherry weighs about 10g The peanuts weighs about 4g
COMPARING AND ORDERING MASSES
HEAVY/HEAVIER/HEAVIEST LIGHT/LIGHTER/LIGHTEST
orange pear apple peach
MORE THAN / LESS THAN
The mass of the orange is more than the mass of the apple.
The mass of the apple is less than the mass of the pear.
CONVERTING Kilogram(kg) and Gram(g)
1 kg = 1000 g
kg(1)--->g ( x )
Kg
|
g
|
1
|
1000
|
kg<---g ( / )
To convert kg to g, multiply the value by 1000
To convert g to kg, divide the value by 1000
Method
“Mass” Converter
DIVIDE
: <---- Convert direction ----> MULTIPLY
DIVIDE / < --- kg(1) – g(1000) ---> x MULTIPLY
Example:
Convert 4.7kg to g
Method
Step1 Circle keywords. Draw Converter
/ < ---
kg(1) : g(1000) --->
x
Step2 Determine x or /
kg to g -> x
Step3
Calculate:
Put value at kg and multiply
/ < ---
kg(4.7)
: g(1000) --->
x
4.7 kg = 4.7 x 1000 = 4700g
Example:
Convert 82 g to kg
Method
Step1 Circle keywords. Draw Converter
/ < ---
kg(1) : g(1000) --->
x
Step2 Determine x or /
g to kg -> /
Step3
Calculate:
Put value at kg and multiply
/ < ---
kg(8.2)
: g(1000) --->
x
82 g = 82 / 1000 = 0.082kg
CAPACITY
Capacity is the amount of liquid a solid can contain.
Capacity is usually measured in litres.
1000 cm³ = 1000 millilitres = 1 litre.
For example the capacity of:
- a jug
- a teacup or mug
- a food container
- a fish tank
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