Chemicals: A substance formed by the combination of two or more atoms in a certain ratio and structure. For example, water is a chemical formed by two hydrogen atoms combining with one oxygen atom. Its chemical formula is H2O. Chemical can also be used as an adjective to describe the properties of substances that result from various reactions between different compounds.
dinosaur: A word meaning fearsome lizard. These reptiles appeared about 243 million years ago. All descended from egg-laying reptiles known as archosaurs. Their descendants eventually split into two lineages. For many decades, they have been distinguished by their hips.
Ecology: The branch of biology that deals with the relationships between organisms and their physical environment. Scientists who work in this field are called ecologists.
element: A building block of a larger structure. (In chemistry) Any of over 100 substances whose smallest unit is a single atom. Examples include hydrogen, oxygen, carbon, lithium, and uranium.
enamel: The hard, shiny substance that covers the teeth.
evolution: (verb: to evolve) The process by which species change over time, usually through genetic mutation and natural selection. These changes usually result in new types of organisms that are better suited to their environment than previous types. The new types are not necessarily “evolving” but simply better adapted to the particular conditions in which they developed. Alternatively, the term can refer to changes that occur as a natural progression in the inanimate world (for example, computer chips evolving into smaller devices that run faster).
iron: A metallic element common in minerals in the Earth’s crust and hot core. It is also found in space dust and many meteorites.
literally: An adjective that indicates that the phrase it modifies is exactly right. For example, if you say:It’s so cold I feel like I’m going to die” means that this person actually expects to die soon from the cold.
Lizard: A type of reptile that usually walks on four legs, has a scaly body and a long, tapering tail. Unlike most reptiles, lizards usually also have mobile eyelids. Examples of lizards include the tuatara, chameleon, Komodo dragon, and Gila monster.
metal: Something that conducts electricity well, is shiny (reflective), and malleable (i.e. can be reshaped with heat and without excessive force or pressure).
microscope: An instrument used to observe objects too small to be seen with the naked eye, such as bacteria or single plant or animal cells.
Monitor lizard: A family of muscular predatory reptiles with scaly bodies, forked tongues, and excellent sense of smell. Some species are good swimmers, and water monitors can reach lengths of up to 1.5 metres (5 feet). The largest monitor lizards are venomous. Komodo Dragoncan reach lengths of 3 metres, weigh more than 90 kilograms (200 lbs), run at speeds of 20 kilometres (13 mph) and eat up to 80% of its body weight in one go. At the other end of the spectrum is the Dampier Peninsula monitor lizard, the smallest of these reptiles, measuring just 23 centimetres (9 inches) in length and weighing just 16 grams (0.6 ounces) as an adult.
Paleontologist: A scientist who specializes in the study of fossils, the remains of ancient organisms.
reptiles: A vertebrate animal whose skin is covered with scales and keratin. Snakes, turtles, lizards, and crocodiles are all reptiles. They are also cold-blooded (or ectotherms).
seed: A group of similar organisms that can survive and produce offspring that can reproduce.
Unique: Something unlike anything else, something unique.
Source: www.snexplores.org
