I choose appropriate units of measurement for mass

GOALA U S V E L S L E V E L S 5 & 6 : M E A S U R E M E N T- L E N GT H , A R E A , VO LU M E , C A PAC I T Y A N D M A S S

APK

The mass of a wombat is about 26 kilograms.What equipment would you use to measure the mass of a koala?

What might the mass of these be?• a kangaroo• a possum• a whale

NEW INFORMATION

We usually measure mass in grams or kilograms

Grams can be written as gKilograms can be written as kg1000 grams = 1 kilogram 1000 kilogram = 1 tonneExample 4 kg is the same as 4000 g 6500 g is the same as 6 1/2 kg 3500 kg is the same as 3 1/2 tonnes

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NEW INFORMATION

We usually measure mass in grams or kilograms

Grams can be written as gKilograms can be written as kg1000 grams = 1 kilogram 1000 kilogram = 1 tonneExample 4 kg is the same as 4000 g 6500 g is the same as 6 1/2 kg 3500 kg is the same as 3 1/2 tonnes

In Interactive NotebookYear 5s and Year 6s:Frameworks 5 (pg 263) – Activity 10 (parts 1, and 2)

APPLICATION( P R A C T I C E )

NEW INFORMATION

People often use "weight" to mean "mass", and vice versa.

An object has mass (say 100 kg).This makes it heavy enough to weigh 100 kg

NEW INFORMATIONGravity causes Weight

An objects weight is how hard gravity is pulling on it.We think the weight is the same everywhere ... because we all live on the surface of the planet Earth!

But in space it would not push on the scales at all.The scales would show 0 kg ... but the mass is still 100 kg!

An object's mass doesn't change (unless you remove some!), but its weight can change.

In Grid bookRefer to practical in Frameworks 5 (pg 264)

APPLICATION( P R A C T I C E )

What did you learn in today’s lesson?

What did you find challenging/difficult?

GOALA U S V E L S L E V E L S 5 & 6 : M E A S U R E M E N T- L E N GT H , A R E A , VO LU M E , C A PAC I T Y A N D M A S S