Dinosaur: a fossil reptile of the Mesozoic era, in many species reaching an enormous size. I like dinosaurs.
Part of speech:noun
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Fish: a limbless cold-blooded vertebrate animal with gills and fins and living wholly in water. My cousin has a fish.
Part of speech: noun
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Horseshoe: a shoe for a horse formed of a narrow band of iron in the form of an extended circular arc and secured to the hoof with nails. The horses have horseshoes.
Part of speech: noun
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Sponge: a piece of a soft, light, porous substance originally consisting of the fibrous skeleton of an invertebrate but now usually made of synthetic material. My mom uses sponges to wash the dishes.
Part of speech: noun
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Trilobite: an extinct marine arthropod that occurred abundantly during the Paleozoic era, with a carapace over the forepart, and a segmented hind part divided longitudinally into three lobes. Trilobites are in the sea.
Part of speech: noun
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Crab: a crustacean with a broad carapace, stalked eyes, and five pairs of legs, the first pair of which are modified as pincers. The crabs are in the beach.
Part of speech: noun
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Amber: hard translucent fossilized resin produced by extinct coniferous trees of the Tertiary period, typically yellowish in color. Amber is yellow.
Part of speech: noun
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Carbon: the chemical element of atomic number 6, a nonmetal which has two main forms (diamond and graphite) and which also occurs in impure form in charcoal, soot, and coal. Trains work with carbon.
Part of speech: noun
15
Mud: soft, sticky matter resulting from the mixing of earth and water. The kids play with the mud.
Part of speech: noun
15
Mineral: a solid inorganic substance of natural occurrence. Water is a mineral.
Part of speech: noun
15
Sediment: matter that settles to the bottom of a liquid; dregs. The ice freezes the sediment.
Part of speech: noun
15
Footprint: the impression left by a foot or shoe on the ground or a surface. I can see dog's footprints.
Part of speech: noun
15
Cast: an object made by shaping molten metal or similar material in a mold. He grabbed a cast.
Part of speech: noun
15
Tar: a dark, thick, flammable liquid distilled from wood or coal, consisting of a mixture of hydrocarbons, resins, alcohols, and other compounds. It is used in roadmaking and for coating and preserving timber. Tar is black.
Part of speech: noun
15
Fossil: the remains or impression of a prehistoric organism preserved in petrified form or as a mold or cast in rock. I saw fossils in the museum.
Part of speech: noun
15
Impression: an idea, feeling, or opinion about something or someone, especially one formed without conscious thought or on the basis of little evidence. What a good impression!