Discover the fascinating power of heat with our Hand Boiler! Simply hold the glass bulb in your hand and watch the colourful liquid bubble and rise as the warmth from your body increases the air pressure inside. It's a captivating demonstration of how heat energy can create movement—no batteries or electricity required!

Perfect for budding scientists, classrooms, and curious minds, the Hand Boiler is an engaging way to explore the principles of temperature, pressure, and gas expansion through hands-on learning.

Perfect for:

• 🔬 STEM education and science demonstrations

• 🏫 Classrooms and home learning

• 🧠 Encouraging curiosity and scientific thinking

• 🎁 Unique educational gifts

• 🌟 Interactive desk and science displays

  
  

Hold it. Watch it bubble. Discover the science of heat in action!

*Do not squeeze this product

*Use product with an adult present at all times