
Identify reaction energy
Free printable Grade 7 science worksheet for "Identify reaction energy" — practice chemical reactions. No-prep, print or assign online.
Middle school students examine chemical reactions and the energy changes involved, building their ability to identify whether a reaction releases or absorbs energy. Teachers can use this worksheet to reinforce physical science content on exothermic and endothermic processes during a unit on chemical reactions. The hard difficulty level suits learners ready to move beyond basic reaction types toward energy analysis.
Learning objectives
- Identify whether a chemical reaction is exothermic or endothermic
- Classify reaction energy based on observable evidence or data
- Connect energy changes to the broader concept of conservation of energy in reactions
Answer Key

How to use this worksheet
- Click “Download Worksheet” and sign in with Google or email to get the PDF instantly.
- Print at home or in class for Middle School; it's no-prep, with no extra materials needed.
- Use the included answer key to mark it in seconds.
Frequently asked questions
Is the “Identify reaction energy” worksheet free?
Yes. “Identify reaction energy” is a free printable Science worksheet. Sign in with Google or email to download the PDF instantly.
What grade or age is this Science worksheet for?
It's designed for Middle School (ages 11–14), covering Chemical reactions.
Does it come with an answer key?
Yes — a matching answer key is included so you can grade it in seconds.
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