The Environment Day Celebration at Willow Creek Park is about to begin, but a mysterious substance has been discovered near the water’s edge! It hasn’t reached the creek yet… but time is running out.
Your students must analyse the evidence, apply their grammar knowledge, and eliminate suspects one by one to uncover the culprit before the celebration is ruined.
This isn’t just a grammar activity. It’s a logic-driven mystery where every correct answer brings them closer to solving the case.
What's Included:
Suspect Board
Each suspect has a profile—but only one is responsible.
Grammar Clue Challenges
Each question requires students to apply grammar knowledge to rule out a suspect
Process of Elimination Gameplay
Each correct answer removes a suspect until only one remains
✔ Includes full activity and answer key
✔ Print-and-go — no prep required
Skills Covered
• Active vs. passive voice
• Modal verbs
• Relative pronouns
• Subjunctive mood
• Hyphenated compound adjectives
• Grammar and usage
• Critical thinking and deduction
Perfect For
• Extending high-ability Year 5–6 students
• World Environment Day activities or environmental lessons
• Literacy rotations / stations
• Small group or partner work
• Early finishers
• NAPLAN Language Conventions revision
Why Teachers Love It
✔ High engagement through mystery and storytelling
✔ Encourages critical thinking and reasoning
✔ Applies grammar skills in a meaningful context
✔ A fun alternative to traditional worksheets
✔ No prep — just print and go
Save the Celebration
Students won’t just answer grammar questions—they’ll solve a case.
Looking for more like this?
My Eco Warriors series is designed to connect grammar skills with real-world environmental learning. You can check out the rest of the series or other mission-based educational adventures in the Ready Steady Games store.
