Let's zoom in a bit more to begin our journey......
Hey guys! I'm Ernie, and I'm a water molecule who lives in a fish tank with all my friends. Right now, we're on the bottom of our tank, so it's pretty cold and all of the molecules here are huddled up.
Now, we're going over the water heater, ad this is when we get all hot and stay away from each other!
Now that I'm hot, I'm lighter than everyone else! This means I'm going up to the top of the tank to show off!!!
showing off was great, but now all my friends wanted a turn, so I'm gonna head back down to get hot again. Thanks for coming with me!