Photosynthesis Round
A four-part round set to "Frère Jacques" — sunlight, water, carbon dioxide, and sugar+oxygen each enter on their own loop, just like the parts of photosynthesis overlap in a leaf.
Voice one — Sunlight: Shining sunlight, shining sunlight, Hits the leaf, hits the leaf! Wakes the green stuff up, Wakes the green stuff up, Time to work, time to work!
Voice two — Water: Roots are drinking, roots are drinking, From the dirt, from the dirt! Water climbs the stem up, Water climbs the stem up, To the leaf, to the leaf!
Voice three — Carbon dioxide: Open windows, open windows, On the leaf, on the leaf! Air comes sneaking in now, Air comes sneaking in now, C-O-2, C-O-2!
Voice four — Sugar and oxygen: Sugar coming, sugar coming, For the plant, for the plant! Oxygen for breathing, Oxygen for breathing, Out to us, out to us!
All voices together: Shining sunlight! Roots are drinking! Air comes sneaking! Sugar coming! Out to us, out to us — Round and round and round!