The teacher and students discuss the data gathered from the greenhouse gases experiment from segment C. An expert from Georgia Power explains how the company uses a device called a calorimeter to measure energy obtained from coal.
In segment F, the students complete the design and engineering task of making hot and cold packs. They draw conclusions about what compounds they can use to create the packs based on their observations and the data they compiled.
Unit 9 introduces kinetics and looks at how molecular motion affects gases. Students learn about collision theory and reaction rates. The teacher demonstrates how substances react with each other, using an antacid tablet immersed in water.
Students discuss their hypotheses about altering the rates of reaction in a dissolving antacid tablet and conduct their experiments, using variables to determine if their assumptions hold true.
Students share their data and draw conclusions from the antacid tablet experiments and learn how catalysts affect reaction rates. The teacher discusses the behavior of gases at the macro and molecular level.
The host describes the different properties of gases and the components of Kinetic Molecular Theory. Students are asked to make predictions about what will happen during demonstrations with gases using a balloon and marshmallow, applying the concepts of ideal gas law.
This segment dives further into the ideal gas law. It includes the students and teacher discussing the models the student made in segment D to demonstrate the relationship between pressure and volume in gases.
Students discuss the calculations and procedures they need for the model air bag experiment and begin making their models and recording their findings.
Students review and discuss the results from their model airbag experiment. Our host speaks with Lea Merriwether, water quality technician at Georgia Aquarium, to discuss how gas levels affect water quality.
Our host introduces equilibrium theories and the dynamic nature of chemical equilibrium. The students perform an activity using Legos® to understand the nature of how forward and reverse reactions affect equilibrium and the amount of products and reactants in a reaction.
This segment explains how to calculate the ratio of products to reactants and why this is important in the manufacture of chemicals for business. Students write equilibrium expressions and prepare to calculate equilibrium constant.
In this segment, students find out if their calculation for the equilibrium constant of ammonia was correct. The teacher asks the students to list examples that illustrate why chemical equilibrium is important in everyday life.
The students explain their examples of real world chemical equilibrium, including in our bodies. The teacher demonstrates Le Chatelier's principle using a solution of tea, showing how different additives will change the tea's color and its equilibrium.