Perfect for classroom demonstrations, this Bell in a Bell Jar Experiment visually and audibly shows how sound requires a medium to travel, making it ideal for teaching the principles of sound in a vacuum. Designed for secondary schools and colleges, it supports practical learning in physics lessons.

• Includes acrylic bell jar with electric bell (requires 3–6V DC power supply, not included)
• Sturdy metal base plate on tripod for stability
• Base plate: 200mm height, 230mm diameter
• Bell jar: 260mm height, 180mm diameter
• Overall mass: 5kg
• 4mm terminals for easy power connection
• Requires Heavy Wall Rubber Tubing 8mm Bore - PP00054275 (Not Included)

  Please note - DC Power Supply, Vacuum pump and Heavy walled tubing are not included (See PP00058450, PP00059643 and PP00054275).