SCIENCE

• sciencia: is from the word the knowledge
• the 3 types of element is metal, non-metal, metalloids
• 3 types of compound is acid, bases, salt
• hypothesis; it is not simply guess but an educated guess
• 2 types of matter; pure substance and mixture
• 2 types pf mixtures: homogeneous and heterogeneous
• atom: it is the smallest particle
• element: it is made up of atoms or anything that occupy a space
• 3 types of atom: proton, neutron, electron
• compound: can be broken down into simplier substance by chemical process
• salt: made up of sodium and chlorine
• water: made up of hydrogen and oxygen
• base: it is a chemical substance which contains hydroxyle ions
• acid: a compound in which when dissolve in water produce hydrogen ion or hydrogen ion as the only positive charge ion
• 10 types of metal: iron, gold, silver, copper, titanium, platinum, aluminum, potassium, magnesium,, mercury
• 8 types of metalloids: boron, silicon, germanium, arsenic, antimony, tellurium, polonium, astatine
• 10 types of non-metals: hydrogen, hellium, neon, carbon, nitrogen, flourine, phosphorus, sulfur, chlorine
• compound: when two or more elements are combined
• acid: it is a chemical substance that has sour taste
• pure substance: made of atoms of two or more elements that are chemically combined
• mixture: they are made of two or substance that are not chemically combined
• Homogeneous mixture: components can't be seen easily
• Heterogeneous mixture: A mixture in which the components are not uniformly distributed throughout the mixture.
• solution: composed of two or more substance physically which are well-mixed
• solute: a substance that dissolves in a solvent to form a solution
• solvent: a substance that dissolves a solute, such as water
• components of solution: solute and solvent
• types of solution: unsaturated, saturated, supersaturated solution
• saturated; a solution that contains the maximum amount of solute that can dissolve in the solvent
• supersaturated; a solution contains more solute that the maximum amount the solvent
• solubility: it is the ability of the solute to dissolve
• molecule: smallest particle of substance which has all the properties of a substance
• organism: combination of organ system which perform particular function
• eyepiece: a cylinder containing two or more lenses
• coarse focus: it is used for the initial focus of an object
• fine focus: it is used for the final and clear focus of the object
• revolving nose piece: it holds the objectives in place so that they can rotate and can be changed easily
• objective: the objective that magnifies the objects
• frame: a rigid sructure of stability
• diaphragm and condenser: control the amount of light