Chapter 8

Which is heavier ?

1 kg popcorn 1 kg sugar

1 kg potato 1 kg chillies

Match the balance with the given weight. Objects Weight

1 kg

500 g

250 g

10 kg

Match the balance with the equal weight.

How to cook

Gurupriya heard about a new dish. She wants to try making it. Help her match the things with their right amounts.

RiceDaalPeasWaterOnionsSaltMustard seedsRed chilly powder

Half kg1 pinch1 bowl2 spoons1 kg5 glasses 2One spoon

Match as per their weight.50 kg

Less than 100gm

Less than 5 kg

More than 1000kg

400 kg

Less than 500gm

Less than 1 kg

Which of these weigh more than 1 kg and which are those with less than 1 kg ?

Tick the heavier among the 0ptions given .

1. OR

2.

OR

OR

OR

OR5.

6.

4.

3. OR

Beam Balance

Electronic BalanceElectronic BalancePlatform Balance

Pan BalanceSpring Balance

Beam Balance

Pan Balance

Round Balance Electronic Balance Electronic Balance

Weighing Machine

10 kg

100 kg

5 kg2 kg

WORK SHEET Date________

Month_______ I. What will you use g or kg to measure the weight of the following: 1. A pencil

________________________ 2. A big watermelon ________________________ 3. A cake ________________________ 4. An orange ________________________ 5. A sack of wheat ________________________ 6. A spoon of sugar ________________________ 7. An apple ________________________ 8. A big pumpkin _______________________

II. Match the following weights and use = sign and write in the given space: 1 kg of potato 2 kg of beans 2 kg of tomatoes 1000 g of chillies 4 kg of onions 500 g of sugar ½ kg of rice 2 kg of brinjal + 2 kg of beetroot

Ex: 3kg of carrots = 3000 g of potatoes 1. __________________ ____________________ 2. __________________ ____________________ 3. __________________ ____________________ 4. __________________ ____________________

Teacher’s Signature Parent’s Signature

Math Lab Activities .

1. Make a model of a weighing machine.

2. Make weights of 100g, 200g, 500g, etc using small packets of sand.

Group Projects.

1. Make a table of weights of each member in their group. Compare the weights and answer some questions related to it.

2. Visit a shop and collect information about the types of balance and weights used there and record it.

3. First estimate the weights of any 10 things and then measure the actual weight.

Thank You

Prepared byMrs. Sujatha SubhashMrs. Sheena.T.K.Kendriya vidyalaya, Kalpetta .