Convection in Water

The Convection in Water Apparatus is a simple yet highly effective demonstration tool designed to help students visualise the movement of heat energy through liquids. Constructed from durable 20mm borosilicate glass tubing, this rectangular convection tube offers excellent clarity and resistance to thermal shock, making it ideal for repeated use in educational environments.

A fitted filling funnel allows easy introduction of water and dye, enabling clear observation of convection currents as the liquid is heated. The apparatus is supplied as a tube only and requires standard laboratory clamps for support during demonstrations. Its compact 200 × 150mm size makes it suitable for both student experiments and teacher-led demonstrations.

Key Features

• Demonstrates convection currents in liquids clearly and effectively
• Made from robust 20mm borosilicate glass tubing for excellent heat resistance
• Includes an integrated filling funnel for easy setup
• Supplied as tube only (clamps not included)
• Compact and classroom-friendly size: 200 × 150mm
• Suitable for KS3, GCSE, and A‑Level physics and chemistry

Ideal for School Science Lessons

This apparatus is perfect for introducing students to the concept of heat transfer by convection in liquids. It is widely used across KS3, GCSE, and A‑Level science courses to support topics including:

• Understanding heat energy transfer in liquids
• Demonstrating how hot water rises and cooler water sinks
• Exploring density changes during heating
• Supporting practical lessons on thermal physics
• Enhancing student engagement through clear visual experiments

Whether used for a whole-class demonstration or small-group investigation, the Convection in Water Apparatus is a reliable and highly effective tool for teaching key principles of heat transfer in school science labs.