skunks: a small, black and white North American animal that makes a strong, unpleasant smell as a defence when it is attacked.
Noun He was an oily, opportunistic skunk.
Worm: a small animal with a long, narrow, soft body without arms, legs, or bones.
Noun The vet says our dog has worms.
asteroid: an object like a very large rock that goes around the sun like a planet.
Noun Scientists are hoping an asteroid will clue them in about early life on earth.
Reptile: an animal that produces eggs and uses the heat of the sun to keep its blood warm.
Noun Snakes, turtles, and crocodiles are all reptiles.
Marble: a type of very hard rock that has a pattern of lines going through it, feels cold, and can be polished to become smooth and shiny.
Noun Lower surface of thorax testaceous and that of abdomen marbled dark brown on a pinkish ground..
Bacteria: very small organisms that are found everywhere and are the cause of many diseases.
Noun Some bacteria can only live in anaerobic conditions.
Ocean: a very large area of sea
Noun These mysterious creatures live at the bottom of the ocean.
chemical: any basic substance that is used in or produced by a reaction involving changes to atoms or molecules.
Noun The government has pledged to reduce the amount of chemicals used in food production.
Limestone: a white or light grey rock that is used as a building material and in the making of cement.
Noun Limestone fragments and a few silicified grains.
coyotes: a small wild animal like a dog that lives in North America.
Noun The only sound is the howl of coyote and the whisper of the wind.
Amphibian: an animal, such as a frog, that lives both on land and in water but must produce its eggs in water.
Noun Salamanders, frogs, and other amphibian life are particularly sensitive to extreme pH levels.
Insect: a type of very small animal with six legs, a body divided into three parts and usually two pairs of wings, or, more generally, any similar very small animal.
Noun Ants, beetles, butterflies, and flies are all insects.
rabbits: a small animal with long ears and large front teeth that moves by jumping on its long back legs, or the meat of this animal eaten as food.
Noun The rabbit hopped across the grass.
earth: the planet third in order of distance from the sun, between Venus and Mars; the world on which we live.
Noun Theories abound about how the earth began.
saber-toothed cats: any of various extinct carnivorous cats (such as genus Smilodon) that were widely distributed in the Oligocene through the Pleistocene of both the Old and New World, are characterized by elongation of the upper canines.
Adjective saber-toothed cats are extinct.
Prehistoric Times: In this sense, prehistory covers the period of time that extends from the appearance of the first hominids, ancestors of Homo Sapiens, to the production of the first written documents, dating from the year 3,300 a. of C
Noun How interesting the history of prehistoric times.
Paleontologist: the scientific study of organisms that lived on earth before there were written records, esp. by examining fossils.
Noun when I grow up I want to be a paleontologist.
Granite: a very hard, grey, pink, or black rock, used for building.
Noun My kitchen is granite.
arthropod: a type of animal with no spine, a hard outer skin, legs with bones joined together, and a body divided into different parts, for example a spider, crab, or ant.
Noun Of the arthropod animals, the one I like the most is the scorpion..
Mammal: any animal of which the female feeds her young on milk from her own body. Most mammals give birth to live young, not eggs.
Noun Humans, dogs, elephants, and dolphins are all mammals, but birds, fish, and crocodiles are not.