Define the term rate
Explain how chemical reactions will react at different rates
Hans on lab/demonstration to show the effect that surface area has on the rate of the reaction.
Lab involved the timing of the dissolution of whole, half, quarter, and powdered Alka Seltzer tablets.
Discuss some chemical properties of acids and bases.
Using pH paper, compare the pH of hydrochloric acid with that of sodium hydroxide. Discuss the concept of a neutral solution.
Explain the function of the indicator in this experiment, which is phenolpthalein.
Neutralize a specific amount of HCl with NaOH. The neutral point is reached when the indicator added to the acid turns pink and remains pink with the addition of a drop of base.
Also test the solution formed with pH paper and indicate that it now reads neutral.
Boil of the liquid and examine the solid left in the evaporating dish.
Write the symbols of the acid and base, indicate it is a double replacement reaction, and have Aiden determine the products from the double replacement.
Session Minutes
45
Minutes Student Attended
45
Lesson Comments
Aiden is very bright and inquisitive. He quickly determined the neutral liquid was water, and the solid formed was table salt.
Formation of a polymer "bouncy ball" experiment. The reactants are borax, cornstarch, Elmer's glue.
Define a chemical polymer.
Present examples of polymers in everyday life. These will include carbohydrates and proteins, plastics and medications.
View and discuss the reaction of group 1 metals, sodium, potassium, and rubidium, with water.
Discus how they are stored and why they are stored in the manner that they are.
View the formulas for the chemical reactions.
View some large scale reactions of these metals with water.
Define exothermic reaction.
Show the explosive reaction between higly reactive sodium and poisonous chlorine gas to for the relatively harmless sodium chloride, or table salt.
Lab exercise to demonstrate a single replacement reaction.
The set up was crushed calcium carbonate in a side arm flask into which sulfuric acid is poured.
The gas is collected in a flask of calcium hydroxide, which forms a precipitate with the carbon dioxide produced. The CO2 which accumulates in the top of the Florence generator flask is tested with a burning wood splint. The splint is extinguished.
Hands on lab to examine the law of conservation of mass which states that in a chemical reaction, the mass of the reactants must equal the mass of the products.
The lab examined this utilizing a series of reactions.
The production of a visible gas in a reaction taking place within a sealed baggie.
The mass of reactants compared to the mass of products when a reaction forms a precipitate.
Session Minutes
45
Minutes Student Attended
45
Lesson Comments
Does nice hands on work, but needs to listen to and follow instructions more closely.
Lab which demonstrated double replacement reactions and the formation of a precipitate which indicated that a chemical reaction had occurred. An explanation of a replacement reaction was given and the chemical reactions written.
Session Minutes
45
Minutes Student Attended
45
Lesson Comments
Aiden comprehends these chemical concepts quite easily for his grade level. He is very bright
Present a hands on lab which demonstrates decomposition reactions. Prior to the lab work, discuss and define the type of reaction seen as a decomposition reaction.
The lab involved the decomposition of hydrogen peroxide to form oxygen gas and water, using a catalyst.
The second reaction involved the decomposition of calcium carbonate (marble)_ by heat to release carbon dioxide gas.
Both reactions involved testing for their presence using a glowing splint in oxygen and a burning splint in the carbon dioxide test tube.
Define and discuss physical and chemical properties. Show examples of each.
Demonstrate how to separate a mixture of iron fillings an sulfur using a knowledge of one of iron's physical properties, magnetism.
Pour 50 ml of ethyl alcohol in one beaker and 50 ml of water in a second beaker. Have Aiden completely describe both solutions.
Demonstrate how to separate the solutions when completely mixed by using a knowledge of their boiling temperatures and the condensation of a vapor.
Separate the alcohol from the water by distillation.
I was substituting for his therapy session, his teacher canceled. We worked on his interactive science notebook, and a mini-lesson on abiotic and biotic factors in the garden as we transplanted his vegetables that he planted last month.