Hi I'm Carl! See the steam rising above the lake? That's me! I am going through the process of evaporation, where I become water vapor through a phase change from liquid to gas. The Sun's powerful rays is what kick starts this process.
Evaporation isn't the only way I can become water vapor! Plants, such as those trees, release water vapor through their stomata into the air. This occurs only after I have been sucked up into the plant by its roots.
After I enter the Earth's Atmosphere, either through evaporation or transpiration, I join with other water droplets as the temperature cools. Through this process I become a water droplet again and help form a cloud.
I have become a big water droplet, so now gravity has an effect on me. It pulls me, along with other water molecules down to Earth in the form of rain. Here, we collect as a stream from the runoff of the mountains.
Wahooo! You made it through the Water cycle with me! When the temperatures rise and the Sun's radiation hits the water, I will rise up from that stream and complete evaporation again! This is a never ending cycle and I hope you will join me next time!