Sid learns that rain comes from clouds and is really important because it helps living things grow.
The Mississippi Museum of Natural Science's swamp exhibit inspires the gang to study alligators.
Frog notices that Kangaroo's mail train is headed straight for a broken track. It's Frog's birthday!
Sid learns that weathermen have to know all about rain, sun, wind and hot and cold temperatures!
The Renkins teach George the proper way to create compost for the garden after he makes a mess.
The countryside catches worm-racing fever when George's prize worm enters a championship race.
Will Arthur and DW survive without AC and TV when a blackout leaves the city without electricity?