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Chemical Reaction Lab & Exothermic Reactions for Middle School Science

Chemical Reaction exothermic

Your middle school science class is sure to love this engaging Exothermic Chemical Reaction Lab!

Students will see both a color change and an exothermic reaction with lots of bubbles and gas in this chemical reaction!

This is an easy-to-do science lab with clear directions and follow-up pages to reinforce ideas about chemical reactions, exothermic, acids and bases, and neutralization. Students will love this lab!

Materials Needed for this Exothermic Chemical Reaction:

  • Calcium chloride
  • Sodium Bicarbonate (Baking soda)
  • Cabbage water
  • Safety goggles
  • Gloves

This unit contains more than just one Exothermic Chemical Reaction Lab experiment!

This chemical reaction lab includes:

  • Lab directions
  • Lab pages
  • Safety Information
  • A reading page on Chemical vs Physical Changes
  • Follow-up Pages
  • Teacher Background Information
  • CER (Claim Evidence Reasoning)
  • Answer Keys

Other science teachers LOVE this Exothermic Chemical Reaction unit!

Check out the many perfect reviews on Teachers Pay Teachers.

My students just love the labs you put together. This one was great. Lots of bubbling and a temperature change. Really fun.

Izzy S. 10/23/22
exothermic and endothermic reactions

This is a standards-based unit helping you cover NGSS MS-PS1-2.

NGSSMS-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. Examples of reactions could include burning sugar or steel wool, fat reacting with sodium hydroxide, and mixing zinc with hydrogen chloride. Assessment is limited to analysis of the following properties: density, melting point, boiling point, solubility, flammability, and odor.

chemical reactions

Try this unit in your middle school science classroom TODAY:

This unit is available for download in two places:

  1. Here on
  2. Teaching Science With Lynda R Williams

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Thank you, and I hope you enjoy using this unit in your classroom!

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