crab: any decapod crustacean of the suborder Brachyura, having the eyes on short stalks and a short, broad, more or less flattened body, the abdomen being small and folded under the thorax.

tar: any of various dark-colored viscid products obtained by the destructive distillation of certain organic substances, as coal or wood.

cast: A stroke of fortune or fate; a lot.

sediment: the matter that settles to the bottom of a liquid; lees; dregs.

sand: Sand is defined as small, loose, gritty particles of rock, or an area with these small particles.

dinosaur: any chiefly terrestrial, herbivorous or carnivorous reptile of the extinct orders Saurischia and Ornithischia, from the Mesozoic Era, certain species of which are the largest known land animals.

sponge: to wipe or rub with or as with a wet sponge, as to moisten or clean.

fossil: any remains, impression, or trace of a living thing of a former geologic age, as a skeleton, footprint, etc.

trace: a surviving mark, sign, or evidence of the former existence, influence, or action of some agent or event;vestige:

amber: a pale yellow, sometimes reddish or brownish, fossil resin of vegetable origin, translucent, brittle, and capable of gaining a negative electrical charge by friction and of being an excellent insulator: used for making jewelry and ot

preserved: to keep alive or in existence; make lasting:

impression: a strong effect produced on the intellect, feelings, conscience, etc.