This resource turns matter cycling in ecosystems into a complete, ready to use review for Grade 9-12 biology, covering the same NGSS standard from three different angles.

The set includes questions like "Which process can occur in the absence of oxygen?", "In what form is carbon stored in plants?", and "What happens to carbon in the carbon cycle when organisms die?"

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, 26 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
• Self checking stations, since every answer key includes explanations
• Review before a lab or class discussion

This set is part of a complete NGSS aligned biology unit. The unit also covers Introduction to Photosynthesis, Light Dependent Reactions, Light Independent Reactions, Cellular Respiration Overview, ATP Energy Currency of the Cell, and Fermentation Pathways, all in the same three worksheet format, so your classroom routine stays familiar while the topic changes.

Suitable for Grade 9-12 biology classes, and for NGSS aligned review at any point in the school year. This set is aligned to NGSS standard HS-LS1-7.