26 – 50 of 74 Classroom Resources

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  Physical Properties, Observations, Mixtures, Solute & Solvent, Mixtures | Middle School

  Lesson Plan: How Fast Does it Flow? Mark as Favorite (5 Favorites)

  In this lesson students explore the viscosity of different mixtures. They measure viscosity of different mixtures and then have the opportunity to design a mixture to attain a particular viscosity. Students will relate their lab experience to the application of viscosity in the real-world as they consider the differences in viscosity between different types of paints.

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  Density, Observations, Interdisciplinary, Scientific Method | Middle School, Elementary School

  Lab: Crush's Dilemma Mark as Favorite (0 Favorites)

  In this lab, students explore the concept of density. They will examine the density of a plastic sandwich bag compared to water. Students will create their own experiment and investigate factors that affect floating and sinking.

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

  Lab: It's Alive Mark as Favorite (0 Favorites)

  In this lab, students will practice making and recording observations, analyzing data, and identifying chemical change. They will transfer dirt, germs, and bacteria from their hands onto a piece of white bread and observe the changes that occur during the following days. Students will analyze the results, make comparisons between clean and dirty samples of bread and learn about the importance of hand-cleaning.

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  Density, Physical Properties, Matter, Observations | Elementary School, Middle School

  Lab: Comparing Density of Liquids & Solids Mark as Favorite (5 Favorites)

  In this lab, students will measure mass and volume, calculate density, and compare the density of given liquids and solids, inferring what causes objects to sink or float in a given liquid. 3-48

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  Solubility, Observations | Elementary School, Middle School

  Activity: Paper Flower Blossoms Mark as Favorite (3 Favorites)

  In this activity, students will investigate solubility by using a combination of washable markers and permanent ink to color a paper flower. The petals of the flower will be folded, and then placed in a shallow dish of water. Students will be intrigued by the outcome as they observe several changes occur. Using their knowledge of several fundamental chemistry topics, student will explain their observations using evidence and modeling.

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  Chemical Change, Phase Changes, Combustion, Observations | Elementary School, Middle School

  Demonstration: The Jumping Flame Mark as Favorite (5 Favorites)

  In this demonstration, students will observe that the vapor of an extinguished candle flame is ignitable.

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  Observations, Mixtures, Physical Properties, Molecular Structure | Elementary School, Middle School

  Demonstration: Investigating Hand Sanitizer and Soap Mark as Favorite (7 Favorites)

  In this demonstration, students will consider the purpose of using both hand sanitizer and soap to wash their hands. They will observe a model of the interaction between hand sanitizer particles and virus particles, as well as between soap particles and virus particles to gain a better understanding of how soaps and sanitizers work.

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  Density, Density, Chemical Change, Observations, Chemical Change, Combustion | Elementary School, Middle School

  Demonstration: Investigating 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 burning candle. 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 candle to extinguish. Students will analyze the outcome and compare the presence of the gases in the container and make determinations about the densities of each.

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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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  Experimental Design, Scientific Method, Graphing, Observations | Middle School, High School

  Lab: Mentos and Soda Investigations Mark as Favorite (22 Favorites)

  In this lab, students will design their own experiment in which they manipulate a variable that relates to Mentos and soda. Students will generate a testable question, design an experiment, collect and analyze the data and present their findings.

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  Scientific Method, Experimental Design, Observations, Introduction, Graphing | Middle School, High School

  Lab: Applying the Scientific Method to Stain Removal Mark as Favorite (59 Favorites)

  In this lab, students will explore the real scientific process by designing an experiment to solve a problem. Students will learn about basic lab equipment, safety, and the scientific process of trial and error while solving a common problem: What color of food coloring requires the most bleach to remove?

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  Observations, Physical Properties, Solubility, Ionic Bonding | High School, Middle School

  Lab: Microscopic Wonder Mark as Favorite (25 Favorites)

  In this lab, students observe and describe the shape, size, and arrangement of salt crystals at various magnifications under a microscope and then compare the properties of each microscopically.

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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 (31 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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  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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  Heat, Temperature, Specific Heat, Observations, Molecular Motion | High School, Middle School

  Activity: What Makes Something Feel Warm Mark as Favorite (58 Favorites)

  In this lesson students actively engage in thinking about energy issues in chemistry and the nature of energy (thermal) transfer. The idea that temperature is a measure of heat content will be challenged, and students will be given the opportunity to collect data that will allow them to clearly see that different materials transfer energy at different rates.

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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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  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 (52 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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  Scientific Method, Observations, Experimental Design | Elementary School, Middle School

  Lab: Introducing the Scientific Method Mark as Favorite (19 Favorites)

  In this lab, students will be introduced to and become familiar with the scientific method. They will apply their understanding by following the steps of the scientific method while investigating the amount of fat in potato chips.

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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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  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, Observations, Acids & Bases, Chemical Change, Mixtures | Elementary School, Middle School, High School

  Demonstration: Inflating a Balloon with Chemistry Mark as Favorite (29 Favorites)

  In this demonstration, the teacher will perform a reaction between acetic acid (vinegar) and sodium bicarbonate (baking soda) in order to inflate a balloon and to introduce the concept of a chemical reaction to students. Students will observe the reaction, and identify indicators of chemical change as well as discuss the different types of matter that are involved.

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  Physical Properties, Observations | Middle School, High School

  Lab: Abe Goes Swimming Mark as Favorite (14 Favorites)

  In this lab, students will investigate surface tension by comparing the number of liquid drops of water and of alcohol that can be held on the surface of a penny. An optional opportunity to investigate surfactants is also provided.

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  Observations, Physical Properties, Chemical Properties, Mixtures | Elementary School, Middle School

  Lesson Plan: Clean-Up Pond Pollution Mark as Favorite (3 Favorites)

  In this lesson, students will compare polluted and filtered water to observe how filtering can remove some kinds of pollutants. Students will also be asked to consider how people affect ecosystems and use the scientific method to conduct an experiment on polluted water.

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  Observations, Separating Mixtures, Mixtures, Interdisciplinary, Physical Properties, Scientific Method | High School, Middle School

  Activity: How Do We Clean Up An Oil Spill Mark as Favorite (38 Favorites)

  In this activity, students simulate an oil spill and test different materials’ ability to “clean” the oil spill.