Practicing the cheering is like cohesion , and we are like the water molecule

According to the chemical principles , water has a lot character like surface tension 、 polarity 、 adhesion and cohesion ...etc . Cohesion is a kind of force that water molecules will attract each others to gather a group , and it can cause something different quality that the single water molecules could not to be .
Practicing the cheering lets all the classmates open their heart , and take times to join in the activity of our class .It is really a good thing .