PDF chapter test TRY NOW
Balloon blowing:
- Take a balloon and blow it.
- Take care that it does not burst.
- Now, let the air escape the balloon.
Origami:
- Take a piece of paper and fold it as shown in the figure.
- You have changed the sheet of paper into a toy aeroplane.
- You may have lots of fun in flying this plane.
- Once you are tired of it, unfold the paper again.
Make a dough:
- Take some dough and make a ball.
- Try to roll out a roti.
- If you are not happy with its shape and you can change it again.
What do all the above cases have in common? Was it possible to get the balloon back to its original shape and size?
Was the size of the paper same as before and after making an aeroplane?
Was it possible to get back the ball of dough again?
What do you conclude?
Only the properties have changed and are formed making it as a change. The process is .
Register for free to see more content