DNA Helix Activity Model [0781]

The DNA Helix Activity Model is a hands‑on, three‑dimensional teaching resource designed to help students clearly understand the structure and function of DNA. Suitable for KS3 and above, this engaging model allows learners to build their own rotating double helix, reinforcing key biological concepts through practical interaction.

This colourful and durable model is easy to assemble and uses snap‑together components to represent the correct base pair sequence of DNA. The paired bases attach to a central rod symbolising hydrogen bonds, while two flexible outer strands represent the alternating pentose sugar and phosphate backbone. Once complete, the finished model forms a realistic double helix that can be rotated on its sturdy base for clear demonstration.

The set includes all the materials needed to construct one complete DNA model and comes supplied with a clear instruction manual. The assembled model measures approximately 13 × 13 × 45cm and weighs around 250g, making it ideal for both classroom use and storage.

Key Features

• Interactive 3D DNA double helix model
• Suitable for KS3, GCSE and introductory A‑Level Biology
• Demonstrates base pairing and DNA structure
• Snap‑together colour‑coded bases for easy construction
• Central rod represents hydrogen bonding
• Flexible strands show sugar‑phosphate backbone
• Mounted on a stable, rotating base
• Includes materials for one model and an instruction manual
• Approximate size: 13 × 13 × 45cm
• Approximate weight: 250g

Ideal for School Science Lessons

The DNA Helix Activity Model is an excellent resource for biology lessons in secondary schools, supporting visual and kinaesthetic learning. It is particularly effective when teaching topics such as DNA structure, base pairing, inheritance, genetics, and cell biology.

• Helping students visualise the double helix structure
• Reinforcing understanding of base pair rules (A‑T and C‑G)
• Supporting practical, discussion‑based learning activities
• Enhancing engagement in KS3 and GCSE biology lessons
• Ideal for group work, demonstrations, or revision sessions

Robust, reusable, and visually engaging, this DNA Helix Activity Model is a valuable addition to any school science department, helping students build confidence and understanding in modern biology.