This resource turns identifying chemical reactions into a complete, ready to use review for Grade 9-12 chemistry, covering the same NGSS standard from three different angles.

Students will answer questions such as "A colorless gas is produced when hydrochloric acid reacts with zinc. What does this indicate?", "When heating a substance causes it to change color and release steam, which is true?", and "Mixing baking soda and vinegar produces bubbles and heat. What type of reaction is this?"

What's Inside?

• 30 Multiple Choice questions as a separate print ready PDF worksheet
• 30 True or False questions as a separate print ready PDF worksheet
• 30 Short Answer questions as a separate print ready PDF worksheet
• Includes Answer Key with Explanations for all 90 questions
• 6 print ready PDF files, 27 pages in total

All three worksheets cover the same topic in different question styles. That means you can use one as a pretest, another for practice or homework, and the third as a follow up quiz, without students ever seeing the same question twice.

Ways to Use This Resource

• No prep cover lesson for a substitute teacher
• First look diagnostic to plan your unit
• Bell ringers and warm ups during the unit
• Homework or review before a test
• Self checking practice, since every answer key includes explanations

This set is part of a complete NGSS aligned chemistry unit. The unit also covers Chemical Reactions, Types of Chemical Reactions, Balancing Equations, Predicting Products, Chemical and Physical Change, and Reaction Energy Changes, all in the same three worksheet format, so your classroom routine stays familiar while the topic changes.

Suitable for Grade 9-12 chemistry classes, and for NGSS aligned review at any point in the school year. This set is aligned to NGSS standard HS-PS1-2.