Classroom Resources: States of Matter


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  • Melting Point, Phase Changes, Phase Diagram, Molecular Motion, Calorimetry, Heat, Specific Heat, Temperature, Intermolecular Forces, Heating Curve, Boiling Point, Law of Conservation of Energy | High School

    Lesson Plan: Phase Changes and Heat Transfer

    The AACT high school classroom resource library and multimedia collection has everything you need to put together a unit plan for your classroom: lessons, activities, labs, projects, videos, simulations, and animations. We constructed a unit plan using AACT resources that is designed to teach the Phase Changes and Heat Transfer to your students.

  • Phase Changes, Molecular Motion | Middle School

    Activity: Atoms in Motion

    In this activity, students will explore how particles that make up matter are in constant motion. The students will use an online PhET simulation to compare the ways that atoms and molecules move in samples of solids, liquids, and gases. This activity will help students improve their understanding of the particle level.

  • Phase Changes, Molecular Motion | High School, Middle School

    Simulation: States of Matter and Phase Changes

    In this simulation, students will participate in a 10 question quiz. Some questions will challenge students to analyze data to identify the correct state of matter for a specific sample, and then connect the chosen state with an animated particle diagram. In addition, students will examine the behavior of particles in an animated sample as they undergo a phase change, and must correctly identify the change that occurs.

  • Physical Properties, Molecular Motion | High School, Middle School

    Activity: Categorizing States of Matter

    In this activity students will analyze both written statements and images that describe the properties of a solid, liquid or gas. Students will determine which state of matter the description best describes and categorize it accordingly.

  • Density, Temperature, Density, Molecular Motion | Elementary School

    Lab: Observing Density of Gases and Liquids

    Students will learn about and discuss the behavior of a gas using examples of convection and an optional teacher-led demonstration. Students will then participation in a lab where they will investigate water currents by observing the results of mixing colored warm water with room temperature water. The lab will be followed by a discussion about the molecular activity of the water mixture.

  • Molecular Motion, Temperature | Middle School, High School

    Demonstration: What is Temperature?

    In this demonstration, students will observe food dye mixing with water at different temperatures.

  • Physical Properties, Phase Changes, Introduction, Molecular Motion, Matter | Elementary School

    Lesson Plan: Introducing States of Matter

    In this lesson, students will investigate particle behavior in different forms of matter: solid, liquid and gas. Students will have an opportunity to examine a model of the particles in the different states of matter and will also participate in a kinesthetic demonstration of matter. They will also learn what makes the states of matter different from one another when changing from one form to another.

  • Molecular Motion, Molecular Motion | High School

    Activity: The Molecule Dance

    In this activity, students will explain bond and molecular movements by mimicking molecular motion with their own movements.

  • Density, Physical Properties, Melting Point, Freezing Point, Phase Changes, Physical Change, Molecular Motion, Freezing | Elementary School

    Lesson Plan: Pothole Science

    In this lesson, students investigate how the density and therefore the volume, of water changes when it freezes.

  • Density, Molecular Motion | Middle School, High School

    Lab: Density Lab

    In this lab, students determine the density of several liquids and solids. They then identify an unknown metal by determining its density. They then calculate the percent error within the class for a specific sample.

  • Solubility, Physical Change, Phase Changes, Reaction Rate, Solute & Solvent, Molecular Motion | Elementary School

    Lesson Plan: Particles in Motion

    In this lesson, students learn that particles that make up matter are in constant motion.

  • Molecular Motion, Kinetic Molecular Theory, Entropy, Intermolecular Forces | High School

    Activity: Connecting States to Entropy

    In this activity, students use blocks to model different states of matter and the Kinetic Molecular Theory to understand the concept of entropy. This is a concept mandated by SAT level or AP level high school chemistry class.

  • Molecular Motion | Middle School, High School

    Simulation: Molecular Motion

    In this simulation, students will have the opportunity to explore on the molecular level how particles move in three states of matter. They will compare two different substances.

  • Molecular Motion, Heat | Middle School, High School

    Lesson Plan: Modeling the Melting of Ice

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

  • Density, Molecular Motion | High School, Middle School

    Simulation: Density Simulation

    In this simulation, students will investigate the effect of changing variables on both the volume and the density of a solid, a liquid and a gas sample. Students will analyze the different states of matter at the particle level as well as quantitatively. This lesson accompanies the simulation from the September 2015 issue of Chemistry Solutions.

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