101 – 125 of 145 Classroom Resources

• 

  Chemical Change, Exothermic & Endothermic, Redox Reaction, Reaction Rate | High School

  Demonstration: Potassium Permanganate Demo Mark as Favorite (7 Favorites)

  In this demo, students witness two chemicals that take some time to react. The KMnO4 and glycerin come into contact and appear not to react, but then a flame results. This is an example of an exothermic redox reaction.

• 

  Conservation of Mass, Exothermic & Endothermic, Chemical Change, Heat, Temperature, Observations, Chemical Change | High School, Middle School

  Lab: Kitchen Reaction Mark as Favorite (17 Favorites)

  In this lab students will observe an endothermic chemical reaction involving baking soda (sodium bicarbonate) and vinegar (acetic acid). Students will investigate the signs a chemical reaction has occurred (gas production, change in temperature). Students will perform the lab in an open system so they can see the change of mass due to gas production. This lab is a lead into the topic of conservation of mass. After the lab is completed, the teacher should do a demonstration of the exothermic reaction Hydrogen peroxide and potassium iodide.

• 

  Calorimetry, Specific Heat, Heat, Temperature | High School, Middle School

  Lab: Understanding Specific Heat Mark as Favorite (31 Favorites)

  In this lab, students will get a general idea of specific heat by investigating the mixing of two liquids at different temperatures. In one case, the same liquids will be mixed, in another case different liquids will be mixed.

• 

  Pros Cons of Nuclear Power, Combustion, Acid Rain, Radiation, Renewable Energy, Radiation | High School

  Activity: Town Meeting Mark as Favorite (32 Favorites)

  In this activity, students will learn about acid rain, gas scrubbers, half-life, chain reactions, and other topics around electricity production through a debate on nuclear power.

• 

  Limiting Reactant, Chemical Change, Conservation of Mass, Stoichiometry, Observations, Inferences, Chemical Change, Exothermic & Endothermic | High School

  Demonstration: Introducing Limiting Reactants Mark as Favorite (14 Favorites)

  In this demonstration, the teacher will perform a series of reactions between acetic acid--vinegar-- and varying amounts of sodium bicarbonate --baking soda--in order to inflate several Ziploc bags. Students will observe the reactions and analyze the quantities of reactants used as well as the results in order to understand the concept of limiting reactants. Students will also determine if the reaction is an endothermic or exothermic process based on their observations.

• 

  Radiation, Electromagnetic Spectrum, Radiation | Middle School, High School

  Lab: The Most Effective Sunscreen Mark as Favorite (27 Favorites)

  In this lab, students will research and compare the effectiveness of various SPF levels in sunscreen lotions. The lotion’s ability to block UV (ultraviolet) radiation from the sun will be tested using a UV bead detector.    

• 

  Colligative Properties, Specific Heat, Freezing Point Depression, Solute & Solvent, Concentration, Heat, Temperature, Calorimetry, Error Analysis | High School

  Lesson Plan: The Hot and Cold of it All Mark as Favorite (13 Favorites)

  In this lesson students will analyze the effectiveness of different brands of antifreeze/coolants and their ability to protect an engine in cold climates. Students will conduct a lab investigation to examine the freezing point depression in samples that have been diluted with distilled water. Students will also determine the specific heat capacities of antifreeze/coolant products as compared to pure water and explain how it relates to thermal energy transfer in the internal combustion engine.

• 

  Calorimetry, Law of Conservation of Energy, Combustion, Heat of Combustion, Specific Heat, Heat, Exothermic & Endothermic, Bond Energy, Temperature, Measurements, Accuracy, Dimensional Analysis, Error Analysis | High School

  Lab: How Much Energy is in Your Snack Food? Mark as Favorite (49 Favorites)

  In this lab, students will find the amount of heat energy stored in foods and compare heat calories with food calories.

• 

  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 (7 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.

• 

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

  Lesson Plan: Hess's Law Mark as Favorite (36 Favorites)

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

• 

  Heating Curve, Phase Changes, Intermolecular Forces, Freezing Point, Melting Point, Boiling Point, Heat of Fusion, Heat of Vaporization , Molecular Motion, Temperature, Heat, Specific Heat | High School, Middle School

  Activity: Simulation Activity: Heating Curve of Water Mark as Favorite (88 Favorites)

  In this simulation, students will investigate qualitatively and quantitatively what happens as water changes states.

• 

  Physical Change, Intermolecular Forces, Heating Curve, Phase Changes, Graphing, Heat, Exothermic & Endothermic, Temperature, Freezing Point, Melting Point | High School

  Lab: Heating & Cooling Curve Mark as Favorite (43 Favorites)

  In this lab, students will create a phase change graph by adding and removing heat to observe and record data during actual phase changes.

• 

  Heat of Neutralization, Acid Base Reactions, Exothermic & Endothermic, Temperature, Specific Heat, Calorimetry, Bond Energy, Net Ionic Equation, Molarity, Dimensional Analysis, Measurements, Mole Concept | High School

  Lab: Heat of Neutralization Mark as Favorite (4 Favorites)

  In this lab, students carry out an acid-base reaction to calculate the heat of neutralization based on experimental data. This lab will reinforce the concepts of exothermic and endothermic processes, system and surroundings, and heat of reaction (specifically, neutralization).

• 

  Chemical Change, Exothermic & Endothermic | High School

  Demonstration: Gun Cotton Mark as Favorite (4 Favorites)

  In this demo, students will witness a decomposition reaction of gun cotton; a smokeless flame results.

• 

  Temperature, History, Interdisciplinary, Chemical Change, Temperature, Heat | Middle School, High School

  Lab: Greenhouse Gas Simulation Mark as Favorite (32 Favorites)

  In this lab, students will create two simulations of the Earth’s atmosphere. They will compare a control model with a one that has an increased presence of carbon dioxide gas in order to analyze how this effects temperature. They will also complete research in order to learn more about the makeup of the Earth’s atmosphere.

• 

  Conservation of Mass, Renewable Energy, Balancing Equations, Chemical Change, Functional Groups, Molecular Structure | High School

  Lab: Soap or Fuel? Mark as Favorite (30 Favorites)

  In this lab, students will transform vegetable oil into a soft soap and into biodiesel fuel. The two reactions emphasize that the products of a chemical reaction are under the control of the chemist. By noting the relationship of the reaction product to the reactants, students will gain a deeper understanding of the law of conservation of matter.

• 

  Atomic Spectra, Activity Series, Emission Spectrum, Ions, Electromagnetic Spectrum, Emission Spectrum, Observations, Inferences | High School

  Lab: Flame Test: Going Further Mark as Favorite (56 Favorites)

  In this lab, students will investigate the colors produced when several mixtures of metallic ions are placed in a flame.

• 

  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 (34 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.

• 

  Combustion, Heat of Combustion, Stoichiometry, Balancing Equations, Dimensional Analysis, Interdisciplinary, Culminating Project | High School

  Lesson Plan: Redesigning a Car for the Environment Mark as Favorite (26 Favorites)

  Chemland’s city public transportation board has requested the class to help them determine the direction the city should move towards in reducing the carbon footprint. Students will be divided into groups and will come up with proposals of how to reduce the carbon footprint from carbon dioxide released from vehicles. The groups will represent different ways to reduce the carbon footprint via an alternative fuel source or a new technology. They will debate their findings to determine the direction that the city council should move towards to reduce the carbon footprint.

• 

  Classification of Reactions, Combustion, Heat of Combustion, Balancing Equations | High School

  Demonstration: Exploding Pumpkin Mark as Favorite (16 Favorites)

  In this demonstration, students will witness a chemical reaction create an explosion inside of a pumpkin. They will write balanced equations for the reactions that take place and will complete stoichiometry and thermochemistry calculations.

• 

  Exothermic & Endothermic, Energy Diagrams, Heat, Temperature, Chemical Change | High School

  Lab: Exothermic and Endothermic Lab Mark as Favorite (52 Favorites)

  In this lab, students determine whether mixing two chemicals is endothermic or exothermic. One is a physical change, one is a chemical change.

• 

  Atomic Theory, Law of Conservation of Energy, Electrons, Electromagnetic Spectrum | High School

  Activity: Simulation Activity: Exciting Electrons Mark as Favorite (90 Favorites)

  In this simulation, students will explore what happens when electrons within a generic atom are excited from their ground state. This is a qualitative investigation, not meant to mimic any particular atom.

• 

  Entropy | High School

  Activity: Entropy Mark as Favorite (20 Favorites)

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

• 

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

  Demonstration: Energy in Hot and Cold Packs Mark as Favorite (22 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.

• 

  Renewable Energy, Conservation of Mass, Chemical Change, Volume, Pressure | Middle School, High School

  Lab: Power That Stinks Mark as Favorite (21 Favorites)

  In this lab, students will experiment with creating and capturing biogas, and have an opportunity to look at how energy is created from waste. They will explore the differences between non-renewable and renewable energy sources.