Scatter crumbs. Ants find them, carry them home, and lay a scent others follow — so a trail self-organizes between nest and food, then reroutes as the crumbs run out. Feed the colony and it grows.
Crumbs — tap or drag to scatter food
Ants — add more foragers
Nest — move the colony's home
Word — lay crumbs shaped like a word; watch them eat it