Asteroid:a small rocky body that orbits the sun. A large number of these, ranging in size from almost 600 miles (1,000 km) wide

Worms:a long, thin animal that has a soft body with no legs or bones and that often lives in the ground.

Reptile:a vertebrate animal of a class that includes snakes, lizards, crocodiles, turtles, and tortoises. They are distinguished by having a dry scaly skin and typically laying soft-shelled eggs on land.

Earth:the planet on which we live; the world.

Saber-too-cats:This is a species of feline already extinct, which belonged to the subfamily of the macairodontines, experts affirm that the saber-toothed tiger appeared for the first time in the American continent

Granite:a very hard, granular, crystalline, igneous rock consisting mainly of quartz, mica, and feldspar and often used as a building stone.

Bacteria:Unicellular microscopic organism, lacking a nucleus, that multiplies by simple cell division or by spores.

Amphibian:a cold-blooded vertebrate animal of a class that comprises the frogs, toads, newts, and salamanders. They are distinguished by having an aquatic gill-breathing

Limestone:Limestone is a sedimentary rock made of calcium carbonate

Ocean:a very large expanse of sea, in particular each of the main areas into which the sea is divided geographically.

Chemical:relating to chemistry, or the interactions of substances as studied in chemistry.

Marble: hard crystalline metamorphic form of limestone, typically white with mottlings or streaks of color,