H-2-O moves to and fro On, above, and below Terra firma, lake, and sea Fuelled by solar energy A process for Life vital It’s the Water Cycle! [Break] For water TO the air Of these be aware First, Evaporation Also, Transpiration [Break] But for water FROM the air We have a working pair: Process Condensation With Precipitation [Break] Boiling will turn water To vapour / gas - rapidly! But such at lower temps Still occurs, just more slowly [Break] Heated by a dash of Sun Molecules can overcome The else binding attraction Of their liquid brethren [Break] That’s Evaporation And speaking globally It from oceans dominates Provides percentage ninety [Break] Of all water in the air Low is Transpiration’s share For surface area of blue Is all green no match to [Break] H-2-O moves to and fro On, above, and below Terra firma, lake, and sea Fuelled by solar energy A process for Life vital It’s the Water Cycle! [Break] Talking Transpiration This is what to know Plants drink with their roots The water down below [Break] Which travels into leaves Then warmed by Sunlight Passes through stomata Into air takes flight [Break] Stomata close at night So plants then transpire less And when the air is drier It speeds up the process [Break] Briefly, we will mention Process Subb-limmation When directly ice or snow From solid to vapour go [Break] In places windy, high Very cold, sunny, dry A Polar and mountain show But contribution very low [Break] H-2-O moves to and fro On, above, and below Terra firma, lake, and sea Fuelled by solar energy A process for Life vital It’s the Water Cycle! [Break] Now, is Condensation Reverse Evaporation: [Break] Cooling water vapour Often higher in the sky Turns from gas to liquid Clouds are born thereby [Break] Particles of dust or salt Help the water droplets form And near ground, overnight Mist and dew are the norm [Break] Next, Precipitation With rain gauge it is found A millimeter measure Of what gets to the ground [Break] As hail, rain, sleet, and snow Four classes of H-2-O Cloud saturation Sees them overflow [Break] Plus, Air Masses different When too they collide Don’t mix easily See “Fronts” at the divide [Break] The surge in Condensation Speeds Precipitation Mighty winds contribute From temp variation [Break] Water then collects Down below again Accumulation is For this the fancy name [Break] In rivers, lakes, glaciers But oceans most of all And what seeps into soil We Infiltration call [Break] Percolation kinda locks Water into deeper rocks Aquifers are such a trap That for water we can tap [Break] H-2-O moves to and fro On, above, and below Terra firma, lake, and sea Fuelled by solar energy A process for Life vital It’s the Water Cycle!
