26 – 50 of 50 Classroom Resources

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  Combustion, Chemical Change, Catalysts, Acid Base Reactions, Chemical Change, Balancing Equations, Classification of Reactions, Observations, Chemical Change | High School, Middle School

  Demonstration: Stop & Go Gases Mark as Favorite (7 Favorites)

  In this demonstration, students will witness the ability of carbon dioxide to extinguish a flame and oxygen to feed a flame. They will also be introduced to the concept of catalysts. This demonstration could also be used as an opportunity to practice writing and balancing equations and classifying chemical reactions.

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  Physical Change, Chemical Change, Observations | Elementary School, Middle School

  Lab: Comparing Physical and Chemical Changes Mark as Favorite (13 Favorites)

  In this lab, students will analyze different scenarios in order to determine if a physical or chemical change has occurred. This lab experience will provide students with the opportunity to record observations, as well as improve their ability to differentiate between physical and chemical changes.

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  Chemical Change, Density, Chemical Change, Density | Elementary School, Middle School, High School

  Demonstration: Fire Extinguisher Mark as Favorite (17 Favorites)

  In this demonstration, students will observe a chemical reaction, and see how the product can be used to extinguish a fire.

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  Heat of Vaporization , Boiling Point, Intermolecular Forces, Phase Changes, Heating Curve, Heat of Combustion, Temperature, Specific Heat, Observations, Chemical Change, Physical Change | Middle School, High School

  Demonstration: Cooking an Egg in Chemistry Class Mark as Favorite (7 Favorites)

  In this demonstration, students will observe the very high latent heat of vaporization for water by boiling water over a Bunsen burner in a paper cup to cook a boiled egg. The discussion can be extended to incorporate intermolecular forces to explain the unusually high boiling point of water, as well as heat of vaporization and specific heat capacity.

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  Solubility, Solute & Solvent, Precipitate, Mixtures, Error Analysis, Chemical Change, Physical Change, Observations, Identifying an Unknown, Graphing | Middle School, High School

  Lab: Chemicals, Chromatography, and Crime! Mark as Favorite (53 Favorites)

  In this lab, students will test “evidence” that has been collected from a crime scene. In order to determine if the victim was poisoned, students will perform a solubility and crystallization test on an unknown powder. Then, students will attempt to identify the culprit by using paper chromatography to analyze the lipstick from the potential criminals.

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

  Demonstration: Comparing Gas Density Mark as Favorite (8 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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  Physical Change, Chemical Change, Observations, Molecular Structure | Middle School, High School

  Lab: Determining a Chemical or Physical Change Mark as Favorite (29 Favorites)

  In this lab, students will follow a laboratory procedure that instructs them how to heat a small sample of copper(II) sulfate pentahydrate. Students will make observations in order to determine if a chemical or physical change occurs.

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  Chemical Change, Identifying an Unknown, Physical Properties, Chemical Properties, Chemical Change, Experimental Design, Scientific Method | High School, Middle School

  Lab: As Easy as Pie Mark as Favorite (63 Favorites)

  In this lab, students will use chemical and physical properties to identify an unknown powder.

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  Solute & Solvent, Chemical Change, Solubility, Chemical Bond | Middle School

  Lab: A Sticky Situation Mark as Favorite (6 Favorites)

  In this lab, students will try to separate plastic spoons that have been attached together with different adhesive materials using a variety of solvents.

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  Physical Change, Chemical Change, Physical Properties, Chemical Properties | Elementary School, Middle School, High School

  Activity: A Physical vs. Chemical Challenge Mark as Favorite (114 Favorites)

  In this activity, students will first complete a card sort to best categorize examples of change as physical or chemical change. Then they will compete in teams to identify whether given situations represent a physical change or a chemical change, or a physical or a chemical property.

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  Chemical Change, Physical Change, Chemical Change | Middle School, High School, Elementary School

  Lab: Chemical and Physical Changes Mark as Favorite (78 Favorites)

  In this lab, students will observe and analyze a number of examples in order to determine if a chemical or physical change occurred.

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

  Video: Spellbound Episode 3—A Yellow Sweater: Bassam Shakhashiri, Ph.D. Mark as Favorite (2 Favorites)

  Produced for the 2011 International Year of Chemistry, the video series Spellbound, tells the story of scientists whose childhood curiosity about everyday things helped them launch careers in the lab, win Nobel Prizes and make other achievements. Their early childhood experiences may encourage young people into careers in the science, technology, engineering and mathematics (STEM) fields. This episode features Bassam Shakhashiri, Ph.D.

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

  Video: Spellbound Episode 1—A Sign on the Door: Ahmed Zewail, Ph.D. Mark as Favorite (6 Favorites)

  Produced for the 2011 International Year of Chemistry, the video series Spellbound, tells the story of scientists whose childhood curiosity about everyday things helped them launch careers in the lab, win Nobel Prizes and make other achievements. Their early childhood experiences may encourage young people into careers in the science, technology, engineering and mathematics (STEM) fields. This episode features Ahmed Zewail, Ph.D.

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  Conservation of Mass, Chemical Change, Interdisciplinary, Culminating Project, Phase Changes, Chemical Change | Middle School, High School

  Project: Law of Conservation of Mass Comic Strip Mark as Favorite (26 Favorites)

  In this project, students will work in groups to create a comic strip that illustrates understanding of the law of conservation of mass.

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

  Lab: Mass & Change Mark as Favorite (16 Favorites)

  In this lab, students will use unified particle pictures of solid, liquid, and gas to explain the law of conservation of mass after carrying out various experiments.

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  Redox Reaction, Electron Transfer, Chemical Change, Observations, Experimental Design, Scientific Method | High School, Middle School

  Lab: Test Tube Geology Mark as Favorite (9 Favorites)

  In this lab, students will observe a reaction between an iron nail and copper(II) sulfate in a test tube over the course of several days, modeling how a similar reaction occurs to form copper deposits in the earth. Students will also modify the procedures to evaluate how changing a factor of their choice affects the results of the test tube reaction, introducing them to concepts of experimental design. It also introduces students to my version of the Science Writing Heuristic (SWH).

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  Chemical Change, Physical Change, Separating Mixtures, Observations, Mixtures, Chemical Properties, Physical Properties, Experimental Design, Scientific Method | High School, Middle School

  Lab: Test Tube Separation Mark as Favorite (25 Favorites)

  In this lab, students will mix four substances in a test tube and recreate the original four layers through chemical and physical means.

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

  Lab: Kitchen Reaction Mark as Favorite (18 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.

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  Reaction Rate, Experimental Design, Scientific Method, Observations, Chemical Change | High School, Middle School

  Lab: Reaction Rate Mark as Favorite (25 Favorites)

  In this lab, students will explore factors that effect reaction rate and develop a general statement that describes how the factors (temperature, particle size, and concentration) effect the rate based on experimental data. This is an inquiry-based activity.

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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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  Chemical Change, Classification of Reactions, Oxidation, Reduction, Redox Reaction, Electrons, Electron Transfer, Observations, Inferences, Chemical Change | Middle School

  Lesson Plan: One Tube Reaction Mark as Favorite (5 Favorites)

  In this lesson, students will observe a chemical change involving oxidation and reduction.

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

  Lab: Chemical Reactions & Equations Mark as Favorite (49 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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  Photosynthesis, Conservation of Mass, Balancing Equations, Chemical Change, Reversible Reactions, Molecular Formula, Interdisciplinary, Chemical Change, Conservation of Mass | Middle School

  Lesson Plan: The Building Blocks of Photosynthesis Mark as Favorite (3 Favorites)

  In this lesson, students will use colored blocks to represent the elements in photosynthesis and illustrate how they are broken down and reassembled to create glucose.

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  Polarity, Polymers, Molecular Structure, Monomer, Intermolecular Forces, Scientific Method, Chemical Change, Intermolecular Forces | Middle School

  Lesson Plan: Watch the Baby! Superabsorbent Polymer Mark as Favorite (6 Favorites)

  In this lesson, students will learn about how polymers, specifically superabsorbent polymers, work. Through lab activities, students will investigate polymer properties.

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

  Lab: Chemistry in a Bag Mark as Favorite (89 Favorites)

  In this lab, students will observe and identify chemical and physical changes contained inside a plastic bag. Students will also use this lab to understand the Law of Conservation of Mass.