Page 1 - LN
P. 1

TOPIC- Unit-15: Splish Splash






               SUB-TOPIC-Sink and float





               LEARNING OBJECTIVE- To know that lighter things float and heavier things

               sink in water.



               DISCUSSION-
                   ●  Take a transparent container and fill it with water.

                   ●  Take objects and put them in water to see that some float on the surface
                       of water and some sink to the bottom of water.
                   ●  Lighter things like paper, straw, flower, ice-cream stick float on water

                       whereas eraser, blocks and pebbles sink in water.
                   ●  It means the things that float are lighter than water and the things that

                       sink are heavier than water.
                   ●  Activity- To do an experiment and find out the things that sinks or floats
                       in water.




               REVISION QUESTIONS(ORAL)-


                   1.  Why do some objects float on water?
                   2.  Why do some objects sink in water?
                   3.  Does a paper boat float or sink in water?

                   4.  Can a pebble float on water? Why?
   1