Introducing the greatest show on Earth   The weather!      Welcome everyone   It's the weather show!   Bring your bathing suits   Don't forget your boots and coats   Folks, we guarantee the show that we perform   Is never dull, if there's a lull   It's just the calm before the storm      Watch it change from icy cold to toasty warm   And rearrange from sunny days to crazy storms   The curtain's rising, we're so glad to have you here!   Come see a new show daily in the atmosphere!      Act one: The Sun!      The sun shines down   On field and town!   On forest, mountain, desert, sea and snow   Some heat's absorbed   Some bounces off (ha ha ha!)   So here it's hot, where there it may be cold   The heated Earth heats up the air   Just like a big hot air balloon, up up it flows   The cooler air sneaks in below   It's heated too, now look out folks, because up it goes!      The sinking air is called a "high", which means it has high pressure. Low pressure air is on the rise, and as they move together . . .      Act two: The Wind!      Those lows and highs   They sink and rise   The air begins to move and flow   It circulates   At different rates   And that creates the winds that blow      The highs are nice   They bring fair skies (ha ha!)   But a low will often bring you clouds or rain   And when they bump   They form a front   A changing of the weather in between      As the highs and lows push and shove, the weather front begins to move! And if a front moves into town, it means a storm just may come down!      Act three: The Humidity!      Because of heat   Drops evaporate   From lakes and rivers, puddles, even trees   The air can fill   Right to the gills   With water vapor, that's humidity   When clouds appear   Rain may be near (oh!)   Because the vapor's cool and starting to condense   And if those drops (oh!)   Begin to plop (plop, plop, plop!)   That's precipitation, folks, you all get drenched!      That's the weather folks   You got your money's worth   Hot or cold or soaking wet   Hey, how lucky can you get?   The weather show's the greatest show   The greatest show on Earth!      Yes sir!