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

Sample questions include "Which of the following is NOT a characteristic of redox reactions?", "Which of the following describes the term 'oxidation'?", and "What is the oxidation state of sulfur in H₂SO₄?"

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, 25 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

• Homework or review before a test
• No prep cover lesson for a substitute teacher
• First look diagnostic to plan your unit
• Review station before a lab or quiz
• 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, Identifying Chemical Reactions, Predicting Products, and Chemical and Physical Change, 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.