Give your biology students a focused look at effects of population change with ninety questions built for real classroom use, whether you are starting a new unit or reviewing before a test.

The set includes questions like "How do changes in one population impact the entire food web?", "Why are keystone species critical to an ecosystem?", and "Which term describes the relationship between species that depend on each other?"

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

Each worksheet reviews the same core ideas from a different angle. Use them across a week or unit so students see the material three times without it ever feeling repetitive.

Ways to Use This Resource

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

This set is part of a complete NGSS aligned biology unit. The unit also covers Investigating Organism Interactions, Modeling Symbiotic Relationships, Ecosystem Disruption and Recovery, and Patterns of Resource Use, all in the same three worksheet format, so your classroom routine stays familiar while the topic changes.

Suitable for Grade 6-8 biology classes, and for NGSS aligned review at any point in the school year. This set is aligned to NGSS standard MS-LS2-3.