Examine printout of Rutherford's scattering experiment. Elicit the conclusions he arrived at based on his results. State the hypothesis derived by Rutherford.
Examine why the positive helium nuclei were refracted and/or reflected in their passage through the thin gold foil.
Introduce the sub atamoic particle the proton and the subatomic particle the neutron.
Introduce a higher level definition of atomic number, based on charge and the number of protons present in the nucleus. Label the atomic number with the symbol Z. Introduce the concept of atomic mass units.

Lab demonstration of how iodine crystals will sublimate form a solid into a vapor.
Discussion of the temperature v pressure curve for the transition which seems to indicate that at a specific temp. and pressure, iodine will form a liquid phase. We will research this a little more.
Introduce Rutherford's scattering experiment which will lead to the introduction of the atomic nuclei.

Define, discuss, and write the formula for Coulomb's law.
Introduce the discovery of the electron through the use of a cathode ray tube showing the deflection of the light beam by a magnet.
View and label the diagram of the Crookes tube
List the mass and charge of the elelctron
View a sketch of the atom as proposed by J.J. Thompson.
This is referred to as the "plum pudding model", elicit why.

Discuss Aristotle's theories and those of Democritus. Compare many points to modern atomic theory.
Introduce John Dalton's atomic hypothesis, define elements, compounds and molecules using his theory
Introduce electricity, the early knowledge it is, and the attraction/repulsion of substances due to the electric charge.
State the size of the atom (average) and revisit that it is mostly empty space.

Discuss Lavoisier's definition of a compound.
Determine that the properties of compounds are different than the properties of their elements.
Use examples of sodium chloride and potassium iodide.
Determine the % by mass of a compound given specific information.
State and write the Law of Definite Proportions.
Determine the Law of Multiple proportions from compounds with like elements

From chemical reaction examples and chemical analysis of the compounds formed, the % by mass of each element in the compound is determined.
Using a variety of examples, the law of definite proportions can be determined. The formula used to determine the % by mass of each element in the compound is determined as the % in grams of the element/total grams of compound x 100.
2-3 problems worked

List and discuss the common techniques used to separate both heterogenous and homogenous mixtures.
Include filtration, Distillation, Crystallization, and sublimation.
Use examples to illustrate each one.
View and label diagrams of a Leibig condenser.

Use examples to illustrate a physical change in matter. Elicit a definition from the examples. Refer to yesterday's chemical reaction and discuss the physical change which accompanied the chemical reaction. Discuss the 3 phases of water from ice to steam, and the energy change needed.
Initiate a problem to determine the actual number of grams of product formed when the grams of reactants are given and one of the concentration of products is listed.
Introduce mixtures and elicit a definition. Use examples and classify mixtures into homogenous and heterogenous.
Demonstrate liquid mixtures, both homogenous and heterogenous and introduce the terms suspension and emulsion, showing examples of each.

Review key terms used to describe physical properties of matter.
Define and discuss a definition relating to chemical properties of matter, and discuss the term chemical reaction. Use examples to illustrate the definition of chemical properties by listing some chemical reactions and discussing the differences.
Prepare a solution of sodium chloride and add a few drops of silver nitrate solution. Have Joshua describe the chemical reaction observed. Define the term precipitate formation, write the chemical reaction on the board using symbols and names, and discuss the importance of the silver chloride precipitate formed to the field of photography,

Discuss the molecular characteristics of solids, liquids and gases.
Differentiate between a gas and a vapor.
Define and discuss what are physical properties of matter.
Construct a list of physical properties.
Define intensive or intrinsic properties of matter and compile a list.