EXPERIMENT

ROOTS GROW DOWN AND SHOOTS GROW UP:

STEP-1:         

It is easy and fun . Take four or five earthen cups or small pots and fill them with soil from a field. Add a little cow dung to the soil . Make sure the cups have a hole at the bottom. Label them as A, B and C. Put some seeds of green gram in all the cups , water them daily . As soon as the seeds sprout, select a shoot of same height from each of the cups. Remove all the other shoots from the cups.

STEP-2:         

 You will need a rectangular box with a small window in one of its sides. A shoe box would be ideal. Cut a 1cm window in one side. When the shoots are 10 cm long, cover the plants in all the cups except cup A with the rectangular box. When covering the cups, place the box such that opening in each of them face different directions. Keep all the cups including’ A ‘ in open sun light.

STEP – 3:         

 Wait for there to four days. Remove the box and look at the plants again. Are the plants tilted? To which side are the plants tilted? With opening facing different direction,did all the plants tilt the same direction?            Compile the results and discuss with your friends.