Gravesande’s Ring and Ball Apparatus – Brass (Thermal Expansion Demonstration)

This classic Gravesande’s Ring and Ball Apparatus is a simple yet highly effective tool for demonstrating thermal expansion in school science lessons. Made from durable brass, this two-piece apparatus clearly shows how materials expand when heated and contract when cooled.

The set consists of a precisely sized metal ball and matching ring. At room temperature, the ball passes through the ring, but when heated, it expands and can no longer fit—providing a clear and visual demonstration of thermal expansion.

Suitable for KS3 and above, this apparatus is ideal for engaging students with hands-on learning and real-world physics concepts.

Key Features

• Two-piece brass apparatus (ring and ball)
• Demonstrates thermal expansion and contraction
• Clear and visual experimental results
• Durable brass construction
• Easy to use for classroom demonstrations
• Suitable for KS3 and above
• Reusable and long-lasting educational tool

Ideal for School Science Lessons

Perfect for KS3, GCSE, and A-Level physics lessons, this Ring and Ball apparatus helps students understand heat and material behaviour through practical demonstration. It is ideal for:

• Demonstrating thermal expansion of solids
• Explaining particle theory and heat effects
• Investigating changes in material dimensions with temperature
• Supporting interactive classroom demonstrations
• Linking theory to real-world engineering applications

Simple, effective, and visually engaging, this Gravesande’s Ring and Ball Apparatus is a valuable addition to any school laboratory for teaching heat and materials science.