Can you say that salt is a liquid on the basis of change in its shape? Justify your answer. Take a sponge. Observe its shape.

Can you find the HCF of 1.2 and 0.12? Justify your answer.

Let us stretch a rubber band. Is there a change in its shape?

What can you say about the motion of an object if its speed-time graph is a straight line parallel to the time axis ?

Cut a right angled triangle, stick a string along its perpendicular side, as shown in fig. (i) hold the both the sides of a string with your hands and rotate it with constant speed. What fo you observe?

To detect the taste bud (gustatory receptor) and its function. rarr Put some sugar on your tongue in the mouth. rarr Block your nose by pressing it between your thumb and index finger. rarr Now eat sugar again. rarr While eating lunch, block your nose in the same way and notice if you can fully appreciate the taste of food you are eating. Is there any difference in the taste of sugar while you block your nose ?

To detect the taste bud (gustatory receptor) and its function. rarr Put some sugar on your tongue in the mouth. rarr Block your nose by pressing it between your thumb and index finger. rarr Now eat sugar again. rarr While eating lunch, block your nose in the same way and notice if you can fully appreciate the taste of food you are eating. Is there a difference in how sugar and food taste if your nose is blocked ? If so, why might be happening ?