Edvotek “Whose DNA Was Left Behind?” Kit – KS3+ Forensic Science Activity

The Edvotek Whose DNA Was Left Behind? kit is an engaging and accessible introduction to DNA analysis and forensic science, suitable for KS3 and above. Based on a realistic crime‑scene scenario, students investigate DNA obtained from a single hair left behind and compare it with DNA from two suspects to identify the culprit.

Using safe, simulated DNA samples supplied in a Ready‑to‑Load format, students perform gel electrophoresis to analyse banding patterns and draw evidence‑based conclusions. The activity is designed to be completed in just 45 minutes, making it ideal for a single practical lesson with minimal preparation.

The kit supports up to 10 lab groups, allowing whole‑class participation while promoting teamwork, observation, and scientific reasoning.

Kit Contents

• Clear student instructions
• Ready‑to‑Load dye DNA samples
• Agarose powder
• Practice gel‑loading solution
• Electrophoresis buffer
• Micro‑tipped transfer pipettes

Additional equipment required: electrophoresis tank and power supply.

Key Features

• Suitable for KS3, KS4, and introductory secondary science
• Fast lesson activity completed in approximately 45 minutes
• Ready‑to‑Load samples minimise preparation time
• Introduces DNA fingerprinting and electrophoresis
• Engaging forensic crime‑scene investigation
• Supports up to 10 lab groups
• Encourages critical thinking and evidence‑based conclusions
• Safe and classroom‑appropriate reagents

Ideal for School Science Lessons

Perfect for KS3 science, KS4 biology, and enrichment lessons, this kit provides a memorable introduction to genetics and forensic science through hands‑on investigation. Clear visual results help students quickly grasp key concepts while maintaining enthusiasm and focus.

• Introducing DNA and genetic identification
• Demonstrating gel electrophoresis principles
• Exploring the role of DNA in forensic science
• Developing practical lab skills
• Encouraging teamwork and scientific discussion

Quick to run, easy to understand, and highly engaging, the Edvotek Whose DNA Was Left Behind? kit is an excellent way to introduce real‑world biology and forensic applications into the classroom.