Page 78 - Viva ICSE Science 5 : E-book

Do and Learn Air has Weight

Perform the following activity to show that air has weight.
You Need:

Two balloons of equal size, long thread, a stick
What to Do: Project Time

1. Cut thread into three pieces of equal length, let’s say
15 inches each. 1. On a chart paper, make three
2. Blow the balloons such that they are of equal size columns for three states of matter,
and tie a thread to each. i.e., solid, liquid and gas. Write
3. Now pick the stick and tie a balloon on each of properties of each state and paste
its ends. pictures that justify each property.
4. Tie a piece of thread exactly in the middle of the Hang the chart in your classroom.
stick. 2. On a chart draw colourful pictures

5. Now hang the apparatus such that the stick comes explaining the process of sea
to a stable position and observe. breeze.
breeze, land breeze and monsoon
6. Prick one of the balloons.
7. Observe what happens and write down the conclusion.

Observation Corner
Group Activity

Identify and mark the three states of matter, Form groups of four students and use
i.e., solid, liquid and gas, in each of the your imagination to make a model of a
following pictures. room showing ventilation. The room can
be a classroom, a kitchen, a bedroom or
a hall. You may use thermocol, colourful
scrap papers, sticks and other materials

to make the model.

64