Page 4 - Changing of materials HA
P. 4

Balloon







                                                                                                             ➢ When air is blown into a

                                                                                                                    balloon, its shape and size


                                                                                                                    change and the balloon gets


                                                                                                                    inflated.


                                                                                                             ➢ Now when the air is allowed

                                                                                                                    to escape, the balloon comes


                                                                                                                    back to its original size and


                                                                                                                    shape.
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