76 – 100 of 106 Classroom Resources

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  Gas Laws, Matter, Density, Density, Temperature, Pressure, Volume, Graphing, Observations, Measurements | High School, Middle School

  Lab: Pressure Bottle Mark as Favorite (3 Favorites)

  In this lab, students determine the relationship between volume and pressure of a gas and its temperature and address the common misconception that air does not have mass or density.

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  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.

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  Chemical Change, Density, Classification of Reactions, Balancing Equations, Observations, Chemical Change | High School

  Demonstration: Preparation of Hydrogen Mark as Favorite (2 Favorites)

  In this demo, students witness a single displacement reaction between zinc and sulfuric acid that produces hydrogen gas. The gas is collected via water displacement and ignited.

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  Sublimation, Density, Observations | High School, Middle School

  Lab: Dry Ice (High School) Mark as Favorite (30 Favorites)

  In this lab, students perform several small experiments using dry ice and record their observations.

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  Separating Mixtures, Observations, Physical Change, Mixtures, Physical Properties | High School

  Lab: Distillation Mark as Favorite (15 Favorites)

  In this lab, students complete a simple distillation lab separating water from cinnamon and food coloring.

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  Periodic Table, Elements, Matter, Physical Properties, Chemical Properties, Observations, Identifying an Unknown | High School, Middle School

  Lab: Periodic Table Trends Mark as Favorite (30 Favorites)

  In this lab, students will investigate trends of the periodic table by examining samples of six elements. Students will use observations about the elements’ appearance, conductivity, and malleability to determine whether they are metals, nonmetals, or metalloids. They will also see how these elements, as well as two more in a teacher demo, react with water and use this information to make claims about reactivity patterns in the periodic table.

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  Chemical Change, Chemical Change, Observations | High School, Middle School

  Lab: Corrosion in Motion Mark as Favorite (6 Favorites)

  In this lab, students will expose metal samples to various solutions and observe the amount of corrosion of a period of time.

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  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 (22 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.

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  Pharmaceuticals, Functional Groups, Identifying an Unknown, Chemical Properties, Observations | High School

  Lab: Over the Counter Drugs Mark as Favorite (39 Favorites)

  In this lab, students will do some research about common over the counter drugs and then carry out some chemical tests to learn more about their composition. They will then identify an unknown drug sample.

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  Conservation of Mass, Chemical Change, Chemical Change, Observations | High School, Middle School

  Lab: Conservation of Mass Mark as Favorite (6 Favorites)

  In this lab, students perform three simple experiments, recording the mass of a substance before and after a reaction. They then explain how the law of conservation of mass was not violated, even if the mass changed.

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  Density, Density, Chemical Change, Observations, Inferences | High School, Middle School

  Demonstration: Comparing Gas Density Mark as Favorite (7 Favorites)

  In this demonstration, students will observe a reaction between baking soda and vinegar in the presence of a variety of different heights of lit candles. The initial environment has plenty of oxygen present in order to sustain the candle’s flame; however the reaction will produce carbon dioxide which will cause the lit candles to extinguish in order of height. Students will analyze and compare the presence of the gases in the container and make determinations about the densities of each.

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  Observations | Middle School, Elementary School, High School

  Activity: Compare and Contrast Mark as Favorite (2 Favorites)

  In this activity, students will use their observation skills to compare and contrast two similar chemistry classroom scenes in order to identify the differences between the two.

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  Density, Observations, Inferences, Measurements, Identifying an Unknown, Error Analysis, Scientific Method | High School

  Lab: Colors of the Rainbow Mark as Favorite (36 Favorites)

  In this lab, students will practice density calculations and put their calculations to test by creating their own density column.

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  Classification of Reactions, Balancing Equations, Chemical Change, Conservation of Mass, Observations | High School

  Lab: Classifying Reaction Types Mark as Favorite (95 Favorites)

  In this lab, students will carry out seven reactions and classify their reaction types. They will make observations, predict products, and balance the equations that represent the chemical reactions that are occurring.

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  Balancing Equations, Chemical Change, Observations | High School, Middle School

  Lab: Chemical Reactions & Equations Mark as Favorite (47 Favorites)

  In this lesson, students will observe a series of reactions, make observations, and then write balanced chemical equations to chemically describe what they observed.

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  Introduction, Inferences, Observations, Scientific Method | High School, Middle School

  Activity: Check Activity Mark as Favorite (15 Favorites)

  In this activity, students develop a theory based on evidence they collect from (fake) cancelled checks to come up with a story of how they are related.

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  Reversible Reactions, Observations, Chemical Change, Physical Change | High School

  Lab: Breath Test Mark as Favorite (7 Favorites)

  In this lab, students investigate whether chemical reactions can happen only in one direction, or whether they can be "undone."

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  Inferences, Observations, Scientific Method | Middle School, High School

  Activity: Black Box Mark as Favorite (3 Favorites)

  In this activity, students will experience how scientists carry out a scientific investigation through inquiry.

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  Observations, Scientific Method, Experimental Design, Error Analysis | High School

  Lab: Airplanes Mark as Favorite (6 Favorites)

  In this lab, students will design a procedure to test for the intended outcome of a longest flight.

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  Chemical Change, Observations, Exothermic & Endothermic, Temperature, Chemical Change, Physical Change, Physical Properties | High School, Middle School

  Lab: Observing a Chemical Reaction Mark as Favorite (25 Favorites)

  In this lab, students will practice making careful observations and measurements while witnessing a chemical change.

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  Observations, Combustion, Phase Changes, Experimental Design, Scientific Method | High School, Middle School

  Lab: Observing a Candle Mark as Favorite (16 Favorites)

  In this lab, students accumulate observations of a candle including a look at the combustion reaction's reactants and products.

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  Observations, Inferences, Scientific Method | High School

  Demonstration: Observations vs. Inferences Mark as Favorite (4 Favorites)

  In this demonstration, students will learn the the difference between observation and inferences.

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  Redox Reaction, History, Oxidation, Reduction, Chemical Change, Observations | High School

  Demonstration: Nitric Acid Acts Upon Copper Mark as Favorite (11 Favorites)

  In this demonstration, students will hear a story about Ira Remsen and watch a demonstration that recreates her first experiment reacting nitric acid with a copper penny.

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  Gas Laws, Molar Mass, Density, Temperature, Pressure, Volume, Ideal Gas, Physical Change, Observations, Density, Identifying an Unknown, Error Analysis | High School

  Lab: Molar Mass of Dry Ice Mark as Favorite (12 Favorites)

  In this lab, students will use gas laws to calculate the molar mass of dry ice and then use the information to identify the compound that makes up this substance.

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  Indicators, Le Châtelier's Principle, Acid Base Reactions, Chemical Change, Chemical Change, Limiting Reactant, Reaction Rate, Observations, Chemical Change | High School

  Demonstration: Milk of Magnesia Magic Mark as Favorite (89 Favorites)

  In this demonstration, students will observe a color change in a milk of magnesia solution as vinegar is added.