Extra Credit

Chemical Change A change that alters the identity of a substance resulting in a new substance or substances with different properties.

Chemical property A characteristic of a substance that is observed in a chemical reaction (corrosion, toxicity, flammability)

Chemical Reaction A chemical change that occurs when two or more substances combine to form a new substance

Production The creation or formation of something.

Precipitate A solid separated from a solution (liquid)

Endothermic A chemical reaction that absorbs heat from the environment

Exothermic A chemical reaction that releases heat into the environment

Physical Property A characteristic of a substance that can be observed or measured without changing the identity of the substance

Thermal Energy The kinetic energy of the particles in a substance. Heat is the flow of thermal energy

Element A pure substance composed of the same type of atom throughout

Atom The smallest particle of an element made of protons, neutrons, and electrons.

compound A pure substance made of 2 or more elements chemically combined in fixed amounts.

periodic table A table in which all the known elements are arranged by properties and are represented by 1 or 2 letters, referred to as chemical symbols.

Malleability can be hammered without breaking.

luster Shiny- reflects light.