In the science area, while some students test water samples, another group works on a mural of the water cycle of evaporation and condensation.
(some students; test; water samples) (another group; works; on a mural of the water cycle of evaporation and condensation; L:In the science area)
some students another group
test works
water samples
on a mural of the water cycle of evaporation and condensation L:In the science area