PRESENTATION OUTLINE
Element
A pure substance that cannot be separated into simpler substances by physical or chemical means. An example of an element is aluminum foil.
Pure substance
A substance in which all the "building block" particles are identical and matter in the substance has a singl element or compound that has definite chemical and physical properties. This photo here is table salt which is a pure substance also a compound.
Metals
Elements that are shiny and conduct heat and electricity well. An example of a metal is iron which is a transition metal.
Nonmetals
Elements that don't conduct heat or electric current and electricity poor. A nonmetal element is sulfur.
Metalloids
Elements that have properties of both metals and non metals and some of them conduct heat but most don't. An example of a Metalloids is Silicon
Compounds
Pure substances composed of two or more elements that are chemically combined. When they combine by reacting a chemical change they end up having different properties. A compound is Baking soda which have element compounds such as (sodium, hydrogen, carbon, and oxygen).
Mixture
A combination of two or more substances that are not chemically combined. One example of a mixture is pizza which you can see all of the components.
Solution
a homogenous mixture throughout which two or more substances are uniformly dispersed and solute in the solvent and the solvent dissolves in the solute. A example of solution is salt in liquid which the salt dissolves in.
Concentration
The amount of a particular substance in a given quantity of a mixture, solution, or ore.
