How are raindrops formed?

We reaserched how raindrops are formed & discovered that tiny water drops are stored in clouds, as they bump into each other they join & form larger droplets.  When they become heavy they fall out of the clouds as raindrops.  We pretended we were tiny water droplets in a cloud, when we bumped into someone we linked arms.  Soon we were all linked and became a large raindrop ready to fall from the cloud.