Classroom Resources: Reactions & Stoichiometry
151 – 161 of 161 Classroom Resources
Observations, Chemical Change, Conservation of Mass, Chemical Change | High School, Middle School
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.
Observations, Phase Changes, Combustion, Scientific Method, Experimental Design | High School, Middle School
In this lab, students accumulate observations of a candle including a look at the combustion reaction's reactants and products.
Renewable Energy, Pressure, Conservation of Mass, Chemical Change, Volume | Middle School, High School
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.
Classification of Reactions, Chemical Change, Heat, Temperature, Exothermic & Endothermic | Middle School, High School
In this lab, students will design and test an experiment for producing either an endothermic or an exothermic reaction. The goal of the lab is for students to successfully construct a reproducible procedure for a reaction that either releases or absorbs thermal energy, and that can be supported with data.
Introduction, Conservation of Mass, Balancing Equations, Conservation of Mass, Limiting Reactant | Middle School, High School
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.
Reaction Rate, Reaction Rate, Acid Base Reactions | Middle School, High School
In this lesson, students will react Alka-Seltzer tablets with water. By varying the temperature of the water, particle size of the Alka-Seltzer, and concentration of the Alka-Seltzer they can see the effect on the rate and strength of the chemical reaction.
Observations, Reaction Rate, Reaction Rate, Chemical Change | Middle School, Elementary School, High School
In this demonstration, students will see that different food dyes react with bleach at different rates.
Polymers, Polymers, Chemical Change, Chemical Bond | Middle School, High School
In this demonstration, students will observe the process of making a polymer, casein plastic, from the casein protein found in milk.
Chemical Change, Precipitate, Balancing Equations, Chemical Change, Chemistry Basics, Solubility Rules | High School, Middle School
In this lab, students use solubility rules to predict which chemical reactions will produce precipitates.
Density, Chemical Change, Density, Chemical Change | Elementary School, Middle School, High School
In this demonstration, students will observe a chemical reaction, and see how the product can be used to extinguish a fire.
Observations, Chemical Change, Chemical Change, Mixtures, Acids & Bases | Elementary School, Middle School, High School
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.