1 – 25 of 145 Classroom Resources

• 

  Emission Spectrum, Atomic Spectra, Electrons, Atomic Theory, Emission Spectrum, Electromagnetic Spectrum, Identifying an Unknown | High School

  Lab: Emissions of Light Mark as Favorite (1 Favorite)

  In this lab, students will examine three different ways to excite electrons to produce visible light found in the electromagnetic spectrum. The students will then see that this visible light has a specific color, wavelength, and frequency. They will use their knowledge of the speed of light and plank's equation to examine the energy involved in the emission of light. Finally, the students will then apply their knowledge of the emission spectrum to how the composition of stars is determined.

• 

  Exothermic & Endothermic, Law of Conservation of Energy, Temperature, Bond Energy | High School

  Project: Thermochemistry Infographic Mark as Favorite (43 Favorites)

  In this project, students will apply the principles of thermochemistry and thermodynamics to explain real world phenomena by creating an infographic using web based tools.

• 

  Electromagnetic Spectrum, Radiation, History | High School

  Lesson Plan: NMR and MRI: Applications in Chemistry and Medicine Mark as Favorite (0 Favorites)

  In this lesson, students will learn about NMR and MRI imaging by reading an article and engaging in related activities. The activities help promote literacy in the science classroom. Parts of this lesson could be used as plans for a substitute teacher.

• 

  Electrolytic Cells, Galvanic Cells, Electrolysis, Redox Reaction, Gibb's Free Energy | High School

  Lesson Plan: Exploration of Electrolytic Cells Mark as Favorite (17 Favorites)

  In this lesson, students will build several electrolytic cells, discuss and diagram their cells to further their understanding of electrolysis, and use qualitative and quantitative analysis of the electrolysis of potassium iodide. Finally, students will practice and be assessed on their knowledge of electrolysis on AP exam-level questioning.

• 

  Entropy, Gibb's Free Energy , Enthalpy | High School

  Lesson Plan: Enthalpy and Entropy as Driving Forces Mark as Favorite (46 Favorites)

  In this activity, students observe various chemical and physical processes to qualitatively predict and explain the signs of ∆S and ∆H. Based on their observations, they will predict the sign of ∆G and will determine the driving force of the process. Students will then calculate ∆S, ∆H and ∆G. This lesson focuses on thermochemical predictions, calculations and explanations.

• 

  Equilibrium Constants, Le Châtelier's Principle, Gibb's Free Energy , Enthalpy, Entropy, Solubility | High School

  Lesson Plan: Relationship Between Free Energy and the Equilibrium Constant Mark as Favorite (17 Favorites)

  In this lesson, students will explore the relationships between solubility and Keq (specifically Ksp), as well as Keq and ΔG°. First, a guided inquiry activity will introduce the relationship between standard free energy and equilibrium constant with the equation ΔG° = -RTlnKeq. Then data collection regarding solubility of potassium nitrate at various temperatures will lead to the calculation of Ksp and ΔGo for the dissolution reaction at those temperatures. Students will manipulate the equations ΔG° = -RTlnKeq and ΔG° = ΔH° - TΔS° to derive a linear relationship between 1/T and lnKeq, which will then be graphed to determine values for ΔH° and ΔS°.

• 

  Entropy | High School

  Activity: Entropy Mark as Favorite (21 Favorites)

  In this activity, students will define entropy and be able to recognize entropy changes in chemical reactions.

• 

  Le Châtelier's Principle, Establishing Equilibrium, Equilibrium Constants, Reaction Quotient, Exothermic & Endothermic, Heat, Temperature | High School

  Demonstration: Le Châtelier’s Principle Mark as Favorite (32 Favorites)

  In this demonstration, students will witness a system at equilibrium and apply different stresses to see how the equilibrium shifts.

• 

  Equilibrium Constants, Reaction Quotient, Activation Energy, Energy Diagrams, Catalysts, Enthalpy, Entropy, Spontaneous vs. Non-spontaneous Reactions | High School

  Lesson Plan: Making Connections in Kinetics, Equilibrium and Thermochemistry Mark as Favorite (31 Favorites)

  In this lesson students will understand the connections between the equilibrium constant (K) and the reaction quotient (Q) as well as how they determine the favorability of a reaction. Additionally students will be able to determine if a reaction is kinetically favored or thermodynamically favored.

• 

  Entropy, Kinetic Molecular Theory, Molecular Motion, Intermolecular Forces, Density, Volume | High School

  Activity: Connecting States to Entropy Mark as Favorite (14 Favorites)

  In this activity, students use blocks to model different states of matter and the Kinetic Molecular Theory to understand the concept of entropy. This is a concept mandated by SAT level or AP level high school chemistry class.

• 

  Heat, Temperature, Specific Heat, Law of Conservation of Energy, Enthalpy, Calorimetry, Exothermic & Endothermic, Balancing Equations, Chemical Change, Measurements, Mole Concept, Dimensional Analysis, Culminating Project, Interdisciplinary, Review, Graphing, Observations, Chemical Properties, Physical Properties | High School

  Project: Handwarmer Design Challenge Mark as Favorite (44 Favorites)

  In this project, students will use their knowledge of thermodynamics to design a handwarmer for a manufacturing company that can maintain a temperature of 30-40°C for at least 5 minutes and is designed for the average human hand. Students will create a final product after rounds of testing and an advertising poster that summarizes the results of their testing and promotes their design.

• 

  Exothermic & Endothermic, Physical Change, Heat, Temperature, Observations, Intermolecular Forces, Solute & Solvent, Saturated/Unsaturated/Supersaturated | High School, Middle School

  Lesson Plan: Particle Modeling of Hand Warmers Mark as Favorite (23 Favorites)

  In this lesson, students will create a particulate model of matter that explains energy changes and transfer during a physical process, such as the crystallization of a solid from a supersaturated solution.

• 

  Hess's Law, Enthalpy, Exothermic & Endothermic | High School

  Lesson Plan: Hess's Law Mark as Favorite (37 Favorites)

  In this lesson, students learn about the concepts of Hess's Law and how to solve problems involving them.

• 

  Hess's Law, Calorimetry, Heat, Enthalpy, Error Analysis | High School

  Lab: Utilizing Hess's Law Mark as Favorite (43 Favorites)

  In this lab, students will use a coffee cup calorimeter to collect data that will allow them to calculate ∆H for two reactions. The first reaction, between sodium bicarbonate and hydrochloric acid is endothermic. The second, between sodium carbonate and hydrochloric pressure, is exothermic. They will then use their experimental values and Hess’s Law to determine ∆H for the decomposition of sodium bicarbonate, compare their calculated value to the theoretical value, and calculate the percent error. This resource includes a prelab presentation and sample calculations.

• 

  Enthalpy, Entropy, Gibb's Free Energy | High School

  Lab: Thermodynamics Escape Room Mark as Favorite (73 Favorites)

  In this lab, students are presented with an escape room scenario that challenges them to complete three tasks in order to escape from an old, mysterious Gothic house. Students are given access to a small assortment of chemicals, and standard lab equipment. They must determine which chemicals and equipment will help them to light a tap light without touching it, free a key from a block of ice without using a conventional heat source, and free a lock that is buried in a pile of glue.

• 

  Hess's Law, Calorimetry, Heat | High School

  Lesson Plan: Hess’s Law Application Mark as Favorite (19 Favorites)

  In this lesson students will determine the ΔHrxn of an unknown reaction using a calorimeter and Hess’s Law.

• 

  Exothermic & Endothermic, Heat, Specific Heat, Temperature, Enthalpy, Calorimetry, Observations, Inferences | High School, Middle School

  Demonstration: Energy in Hot and Cold Packs Mark as Favorite (25 Favorites)

  In this demonstration, students will observe temperature changes in chemical hot and cold packs and discuss processes of endothermic and exothermic changes. They will also see that common household products can be used to make a hot and cold pack.

• 

  Exothermic & Endothermic, Physical Change, Temperature, Freezing Point, Boiling Point | High School, Middle School

  Demonstration: Energy Mark as Favorite (10 Favorites)

  In this demonstration, students will observe the exothermic and endothermic properties of state changes of substances with different freezing and boiling points.

• 

  Exothermic & Endothermic, Law of Conservation of Energy, Heat, Temperature | High School

  Activity: Endothermic & Exothermic Reactions Mark as Favorite (17 Favorites)

  In this activity, students observe industrial-strength snap sticks and chemical cold packs and discuss processes of endothermic and exothermic reactions.

• 

  Reaction Rate, Graphing, Temperature, Concentration | High School, Middle School

  Lab: Starch-Iodine Clock Reaction Mark as Favorite (71 Favorites)

  In this lab, students perform an iodine clock reaction to determine how concentration and temperature effect the reaction rate.

• 

  Reaction Rate, Activation Energy, Hess's Law, Exothermic & Endothermic, Le Châtelier's Principle | High School

  Lab: Kinetics and Equilibrium Mark as Favorite (28 Favorites)

  In this lab, students will investigate the reaction of the hydrogen sulfite ion (HSO3-) and the iodate ion (IO3-) to determine the effect that changing concentration and temperature has on the reaction rate.

• 

  Activation Energy, Temperature, Exothermic & Endothermic, Heat, Equilibrium Constants, Establishing Equilibrium, Le Châtelier's Principle, Reaction Quotient | High School

  Activity: Reversible Reactions Simulation Mark as Favorite (40 Favorites)

  In this activity, students will investigate how temperature, activation energy, initial amounts of products and reactants, and type of reaction (exo- or endothermic) effect the equilibrium position of a reaction using a simulation.

• 

  Enthalpy, Entropy, Gibb's Free Energy , Spontaneous vs. Non-spontaneous Reactions, Exothermic & Endothermic | High School

  Lab: Investigating Enthalpy and Entropy Mark as Favorite (55 Favorites)

  In this lab, students will be able to observe and measure energy changes during the formation of solutions. The students should be able to explain and describe these changes in terms of entropy, enthalpy and free energy.

• 

  Redox Reaction, Gibb's Free Energy , Spontaneous Reactions , Reduction, Oxidation, Half Reactions, Galvanic Cells, Electrons, Electron Transfer, Cathode, Anode, Reduction Potentials, Exothermic & Endothermic, Spontaneous vs. Non-spontaneous Reactions, Dimensional Analysis | High School

  Lesson Plan: How Far Can We Go? Mark as Favorite (8 Favorites)

  In this lesson students compare energy densities of lead acid and lithium ion batteries to understand the relationship between electrochemical cell potentials and utilization of stored chemical energy.

• 

  Calorimetry, Exothermic & Endothermic, Temperature, Stoichiometry, Limiting Reactant, Chemical Change, Molarity, Enthalpy, Heat, Concentration, Experimental Design, Scientific Method | High School

  Lab: Less Than Zero Mark as Favorite (36 Favorites)

  In this lab, students will investigate the endothermic reaction between baking soda and HCl. Students will consider stoichiometric ratios, molar concentrations, reaction scale, and calorimetry. The lab starts with a scripted reaction that uses given molar ratios, a glass beaker, and 2-M HCl. They will witness a temperature drop of about 5 to 8 C. Students then adjust the experiment so they can achieve a temperature drop of more than 20 C.