Chemical Reactions: Students will observe substances before and after interacting to see if a chemical reaction has occurred. In this resource, students will learn about the signs of chemical reactions, chemical equations, and types of chemical reactions while completing 5 hands-on science investigations! This resource includes a 30-page slide show on chemical reactions and their properties. This resource includes labs with clear directions, follow-up pages, an informational text article, and a multiple-choice quiz. This is a huge unit with over 90 pages and slides. See more on Signs of a Chemical Reaction for middle school science. See combustion reaction.
This resource includes the following science investigations:
Combustion: Burning Steel Wool
Producing a Precipitate
Acid and Base Reaction
Chemical and Physical Reactions
This resource is also a great introduction to chemical equations and students will learn about coefficients and subscripts and the purpose of a chemical equation.
NGSS MS-PS1-2. Analyze and interpret data on the properties of substances before and after the substances interact to determine if a chemical reaction has occurred. [Clarification Statement: Examples of reactions could include burning sugar or steel wool, fat reacting with sodium hydroxide, and mixing zinc with hydrogen chloride.]
Utah SEEd Standard 8.1.3
Plan and conduct an investigation and then analyze and interpret the data to identify in changes in a substance’s properties to determine if a chemical reaction has occurred. Examples could include changes in properties such as color, density, flammability, odor, solubility, or state. (PS1.A, PS1.B)