Endothermic and Exothermic reactions (lab based worksheet, KS3)

This is a great activity if you want to check understanding and application of key ideas as part of any chemical reactions unit! It’s especially good if you are limited with time or resources for labs in your school.

The worksheet outlines 6 different reactions. In Page 1 students must first class each reaction as endothermic and exothermic as well as answer a couple of questions about the experimental method. Page 2 is all about equipment and asks students to decide which equipment would be most effective for measuring a change in temperature. Check the preview to check if it’s right for you! An answer sheet is included in the downloadable folder with some suggested answers.

If you want to do any of the reactions I used the following websites (sorry, I can’t share URLs but this should come up with a search result quickly):

RSC website- exothermic-or-endothermic-classifying-reactions

Middle school chemistry .com chapter 6, lesson 11

If you use this worksheet I would love some feedback! Its great to find out if my resources work for other classes and students as well :)