What kind of change did you obesrve in the leaves ?

Take two similar green leaves . Apply grease on one leaf and leave the other free. Add 1 or 2 drops of acid on each leaf . What kind of change do you observe from this ?

What changes do you observe in the dough ?

What change did you observe in the thermometer in the given experiment ? What result you will get , if you perform this experiment with dry seeds ?

What change did you observe in the thermometer in the given experiment ? What are the apparatus used in this experiment ?

What change did you observe in the thermometer in the given experiment ? Where does the heat come from ?

What change did you observe in a paper plate, if you keep vada or upma on a paper plate?

What kind of reproduction do you observe in bees, wasps and ants ?

What change do you observe in thermometer readings ?

What change do you observe in the given figures (a) and (b) ?

What changes do you observe in the thigh muscle ?