Classroom Resources: Reactions & Stoichiometry

1 – 14 of 14 Classroom Resources

• 

  Chemical Change, Conservation of Mass, Balancing Equations | Middle School, High School

  Demonstration: Identifying Chemical Reactions

  In this demonstration, students observe a series of teacher led demonstrations to learn how to identify evidence that a chemical reaction has occurred, how to write a word equation to explain a chemical reaction, and how to convert a word equation to a balanced chemical equation.

• 

  Balancing Equations, Conservation of Mass | Middle School, High School

  Activity: Balancing Equations with Note Cards

  In this activity, students will balance equations and get immediate feedback on whether they are accurate or not while trying to solve a challenge. This activity works best as a review activity after balancing and the law of conservation of matter has been taught.

• 

  Conservation of Mass, Measurements | Middle School, High School

  Lab: Mass of a Gas

  In this lab, students will perform a simple chemical reaction in a closed system to produce a small amount of gas. They will collect mass measurements for the reactants and the products in order to demonstrate the conservation of mass during the reaction. They will also release the produced gas from the closed system in order to verify that gasses have mass.

• 

  Balancing Equations, Conservation of Mass | Middle School, High School

  Activity: Balancing Legos

  In this activity students use Legos to model the reactants and products in a chemical reaction. They use these “atoms” and “molecules” to balance the chemical reaction in order to demonstrate the law of conservation of matter.

• 

  Balancing Equations, Conservation of Mass, Molecular Formula | Middle School, High School

  Lesson Plan: Counting Atoms & Balancing Equations

  In this lesson, students will learn how to count atoms and how to balance chemical equations using videos, simulations and games.

• 

  Balancing Equations, Conservation of Mass, Photosynthesis | Middle School

  Activity: Achieving a Photosynthetic Balance

  In this activity, students will use candies to model the rearrangement of atoms from reactant to products during photosynthesis.

• 

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

  Lab: Chemistry in a Bag

  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.

• 

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

  Project: Law of Conservation of Mass Comic Strip

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

• 

  Conservation of Mass, Exothermic & Endothermic | High School, Middle School

  Lab: Kitchen Reaction

  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.

• 

  Conservation of Mass, Balancing Equations, Limiting Reactant, Introduction, Conservation of Mass | Middle School, High School

  Activity: Kinesthetic Reactions

  In this lesson students, through their physical movement, will model the law of conservation of mass during a chemical reaction. Students will also explore the concepts of limiting and excess reactants as well as balancing a chemical equation. Through this activity they also develop a means of representing particles at the molecular level.

• 

  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

  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.

• 

  Renewable Energy, Conservation of Mass, Chemical Change, Volume, Pressure | Middle School, High School

  Lab: Power That Stinks

  In this lab, students will experiment with creating and capturing biogas, and have an opportunity to look at how energy is created from waste. They will explore the differences between non-renewable and renewable energy sources.

• 

  Conservation of Mass, Measurements, Conservation of Mass | High School, Middle School

  Lab: Mass & Change

  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.

• 

  Balancing Equations, Conservation of Mass | Middle School, High School

  Activity: Simulation Activity: Balancing Chemical Equations

  In this activity, students will learn how to count atoms and how to balance chemical equations using a simulation and games from PhET Interactive Simulations.