Measuring weight using simple balance

Measuring weight using simple balance

Travel Through

Bharath and Kannagi buy grapes from two different fruit sellers from the road side shop.

Teacher’s Note: Teacher can make students understand the need of standard measures.

Learn

Small things can be weighed using simple balance.

Big things can be weighed using weighing machine.

A simple balance has two pans.

The pan with heavier object comes down.

The pan with lighter object goes up.

If both the objects are equal in weight, the pans will be in the same level.

Practice

A. Fill the boxes with ‘H’ for heavy and ‘L’ for light.

B. Tick (✔) the lighter side and cross (X) the heavier side of the simple balance.

Pleasure Time

Match the objects with the suitable balance that are used to measure the weight.

Jaggery, Beads, Rice bag, Sugar bag, Goldstuds, Elaichi

Activity

* Take two coconut shells, thread and a ruler.

* Tie the thread at the centre of the ruler.

* Tie the shells on both sides at equal distance from its centre. Now, the simple balance is ready.

* Take some marbles, pencil, eraser, crayons, chalk piece, paper, pencil box and paper.

* T he children can be divided into group of three each.

* One child keeps the objects whose weight is to be measured on the right pan of the balance.

* The other child keeps adding marbles on the left pan of the balance till both the pans are balanced.

* The third child counts the marbles and records the weight of different objects.