What is weight?

Weight is a measure of how

heavy an object is.

Name 2 units of measurement

grams

1kg = 1000g

When do we use kilograms?

When do we use grams?

grams

26 grams

2 kilograms

9 grams

918 grams

4 grams

48 kilograms

30 kilograms

30 grams

22 kilograms

22 grams

33,289 grams

33,289 kilograms

What is an estimate?

An approximate calculation or judgment of the value, number, quantity and weight

Fruits & Vegetables Estimate (Lightest to

Heaviest)

Banana 4

Tomato 5

Kiwi 1

Orange 3

Carrot 2

Potato 6

Apple 7

Fruits & Vegetables Exact Weight

Banana 120 grams

Tomato 115 grams

Kiwi 45 grams

Orange 98 grams

Carrot 70 grams

Potato 250 grams

Apple 100 grams

Fruits &

Vegetables

Estimate

(Lightest to

Heaviest)

Exact

Weight

Rankings

(Lightest to

Heaviest)

Banana 4 120 grams 6

Tomato 5 115 grams 5

Kiwi 1 45 grams 1

Orange 3 98 grams 3

Carrot 2 70 grams 2

Potato 6 250 grams 7

Apple 7 100 grams 4

150g

155g 425g

325g

200g

550g

500g

110g

65g

45g559g 15g

150g

Pringles Chips

JOURNEY TO MARS

You have been chosen as one of the first passengers to travel to Mars.‘Space Technology’ will let you take only 1kg of luggage. What things canyou pack in your back pack to take with you that will weigh 1kg or less.

250g

150g

200g

1.5kg

450g 350g

600g

500g300g

JOURNEY TO MARSYou have been chosen as one of the first passengers to travel toMars. ‘Space Technology’ will let you take only 2kg of luggage.What things can you pack in your back pack to take with youthat will weigh 2kg or less.

100g

300g

200g

700g

400g 50g

600g

500g750g