Ecology Word Search — Hard

Play a free online Ecology word search puzzle. Difficulty: Hard. Find all 12 hidden words on the 12×12 grid below.

Words to find

Plus 4 hidden bonus words.

OIL /ˈɔɪl/ · noun, verb: A viscous liquid derived from petroleum, used as a fuel, lubricant, or in cooking. To apply oil to a surface, typically to prevent rust or corrosion. Related: petroleum, fuel, lubricant, grease.
SILT /sɪlt/ · noun: A fine-grained sediment deposited by water, typically at the bottom of a river or lake. It is often composed of clay and other minerals. Related: sediment, mud, clay, loam.
DENSITY /ˈdɛnsɪti/ · noun: The degree of compactness of a substance, defined as its mass per unit volume. More broadly, the quantity of people, things, or phenomena within a given area or space. Related: concentration, compactness, thickness, closeness.
ECOSYSTEM /ˈiːkəʊˌsɪstəm/ · noun: A biological community of interacting organisms and their physical environment, considered as a functioning unit. By extension, any complex network of interdependent elements that functions as a whole. Related: environment, habitat, biome, biosphere.
PREY /priː/ · noun, verb: An animal hunted for food or sport. To hunt or be hunted as prey. Related: game, quarry, preyed, hunted.
FOG /fɒɡ/ · noun: A visible mass of tiny water droplets suspended in the air at or near the Earth's surface, reducing visibility; by extension, a state of mental confusion or obscurity. Related: mist, haze, murk, smog.