626 – 650 of 657 Classroom Resources

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  Melting Point, Elements, Matter, Density, Chemical Properties, Periodic Table, Inferences | Elementary School

  Lesson Plan: Mystery Metals Mark as Favorite (0 Favorites)

  In this lesson, students will make measurements, calculations, and inferences to help solve a mystery about the identity of an unknown metal.

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  Measurements, SI Units, Accuracy, Introduction | High School

  Activity: Mysteriously Melodramatic & Maniacal Metric Measurements Mark as Favorite (52 Favorites)

  In this activity, students predict the measurements of objects using metric units. They then take the actual measurements and compare them to their predictions.

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

  Lab: My Pennies Mark as Favorite (3 Favorites)

  In this lab, students will investigate how an acidic, vinegar based solution can help to get “dirty” pennies clean. Students will observe chemical change and investigate real-world connections to this lab.

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  Mole Concept, Dimensional Analysis, Density | High School

  Lab: Moles of Food Mark as Favorite (60 Favorites)

  In this lab, students will analyze the nutrition label of a variety of foods to find the amount of specific elements in each serving. Students are asked to evaluate and compare the data in a series of questions, in order to convert the values to moles. This lab gives students the opportunity to see the connection between the chemistry mole concept and everyday foods.

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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 (13 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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  Molecular Motion, Heat, Phase Changes, Melting Point, Heating Curve, Freezing Point, Temperature, Graphing | High School, Middle School

  Lesson Plan: Modeling the Melting of Ice Mark as Favorite (33 Favorites)

  In this lesson, students will create a particulate model of matter that explains energy changes and transfer during a phase change.

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  Chemical Bond, Molecular Structure, Atoms, Elements, Matter, Interdisciplinary, Naming Compounds | Elementary School

  Lesson Plan: Modeling Molecules Mark as Favorite (0 Favorites)

  In this lesson, students explore the structure of matter by designing, building, comparing, and evaluating models of a variety of simple molecules.

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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 (91 Favorites)

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

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  Separating Mixtures, Percent Composition, Mixtures, Interdisciplinary, Measurements | Middle School

  Lab: Metallic Breakfast Mark as Favorite (8 Favorites)

  In this lab, students will separate iron filings from iron-fortified breakfast cereals. Students will use the recorded data to conduct percent composition calculations.

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  Periodic Table, Physical Properties, Chemical Properties, Observations, Inferences, Chemical Change, Identifying an Unknown, Error Analysis | High School

  Lab: Metal, Non-Metal, or Metalloid Mark as Favorite (79 Favorites)

  In this lab, students will classify several samples of elements as metals, nonmetals, or metalloid based on their physical and chemical properties.

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  Periodic Table, Physical Properties, Identifying an Unknown, Ionization Energy, Atomic Radius, Electronegativity | High School

  Activity: Mendeleev's Periodic Table Mark as Favorite (52 Favorites)

  In this activity, students will use their knowledge of Periodic Trends to analyze and identify unknown elements and organize them correctly in the Periodic Table.

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  Periodic Table, Identifying an Unknown | High School

  Activity: Mendeleev's Cards Mark as Favorite (12 Favorites)

  In this activity, students learn about periodic trends by organizing cards and then determining the information on a missing card.

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  Stoichiometry, Gas Laws, Ideal Gas, Pressure, Volume, Temperature, Interdisciplinary | High School

  Lesson Plan: Mechanisms and Properties of Airbags Mark as Favorite (31 Favorites)

  In this lesson students will learn about the mechanisms and properties of airbags, and examine the choice of airbag inflator from several points of view.

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  Conservation of Mass, Matter, Conservation of Matter, Conservation of Matter, Conservation of Mass, Balancing Equations, Chemical Change, Predicting Products, Experimental Design, Chemical Change, Observations | High School

  Lab: Matter Matters Mark as Favorite (19 Favorites)

  In this lesson, students will investigate the Law of Conservation of Mass.

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  Measurements, Introduction, Dimensional Analysis, Scientific Notation, Error Analysis, Significant Figures, Accuracy, Density, Error Analysis, Interdisciplinary, Accuracy | High School

  Lab: Math and Measurement Mark as Favorite (98 Favorites)

  In this lab, students will practice introductory math skills that will be used in chemistry all year. This includes metric conversion, significant figures, scientific notation, dimensional analysis, density, percent error, accuracy and precision, as well as using lab equipment.

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  Percent Composition, Scientific Method, Introduction, Percent Composition | Middle School

  Lab: Mass Percent Mark as Favorite (2 Favorites)

  In this lesson, students will develop a theory of how to calculate percent composition.

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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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  Periodic Table, Introduction, Elements, Identifying an Unknown | High School

  Activity: Make a Periodic Table Mark as Favorite (21 Favorites)

  In this activity students use imaginary elements to create a periodic table based on the known properties of those elements.

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  Physical Properties, Interdisciplinary, Introduction | Elementary School

  Activity: Magnificent Magnets Mark as Favorite (0 Favorites)

  In this activity, students will investigate the physical properties of magnetism.

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  Physical Change, Mixtures, Observations | High School, Middle School

  Activity: Magic Bubble Mark as Favorite (6 Favorites)

  In this lesson, students will create and interpret particle diagrams that represent elements and compounds at the molecular level. They will also describe the process of dissolving and create particle diagrams that represent mixtures at the molecular level.

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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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  Density, Observations, Inferences, Mixtures, Mixtures | Middle School, High School

  Demonstration: Density Tubes Mark as Favorite (3 Favorites)

  In this demonstration, students will have the opportunity to observe and analyze the density of a solution. Students will interpret their observations as they compare the density of the solution with plastic components.

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  Molecular Formula, Ionic Bonding, Covalent Bonding, Molecular Geometry, Naming Compounds, Lewis Structures, Periodic Table, Valence Electrons, Lewis Dot Diagrams, Ions, Subatomic Particles | High School, Middle School

  Simulation: Ionic & Covalent Bonding Mark as Favorite (160 Favorites)

  In the September 2016 simulation, students investigate both ionic and covalent bonding. Students will have the opportunity to interact with many possible combinations of atoms and will be tasked with determining the type of bond and the number of atom needed to form each. Students will become familiar with the molecular formula, as well as the naming system for each type of bond and geometric shape, when applicable.

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  Electron Affinity, Atomic Radius, Ionic Radius, Ions, Atoms, Periodic Table, Model of the Atom, Subatomic Particles, Electrons, Valence Electrons | High School

  Simulation: Periodic Trends II: Electron Affinity, Atomic Radius & Ionic Radius Mark as Favorite (31 Favorites)

  The May 2016 simulation is a follow-up to the March 2016 simulation. Students will focus their investigation on the electron affinity of an atom. Through the use of this simulation students will have the opportunity to examine the formation of an anion as well as compare the atomic radius of a neutral atom to the ionic radius of its anion.

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  Atomic Radius, Ionic Radius, Ionization Energy, Valence Electrons, Periodic Table, Atoms, Electrons, Subatomic Particles, Ions, Model of the Atom | High School

  Simulation: Periodic Trends: Ionization Energy, Atomic Radius & Ionic Radius Mark as Favorite (98 Favorites)

  In this simulation for the March 2016 issue, students can investigate the periodic trends of atomic radius, ionization energy, and ionic radius. By choosing elements from the periodic table, atoms can be selected for a side by side comparison and analysis. Students can also attempt to ionize an atom by removing its valence electrons. Quantitative data is available for each periodic trend, and can be further examined in a graph.