This is a classic example of thermodynamics in action! The heat of your hand warms 1 bulb, causing the air in the hand boiler to expand. Liquid is forced into the other bulb, making it appear to boil for an exciting demonstration!
Comes with a Teacher’s Guide
Glass construction with 2 side by side bulbs connected by a straight tube
High-protection, fluid-resistant and anti-static disposable lab coat in size Extra Large.
These extra-large, powder-free, 5mil Nitrile Exam Gloves are designed and manufactured for superior comfort and protection.
This set includes three (3) N95 FDA registered and NIOSH approved and respirators.
Affordable pack of 10 PPE face shields for protection from liquids.
Great exam quality Nitrile gloves in size SMALL.
These large, powder-free, 5mil Nitrile Exam Gloves are designed and manufactured for superior comfort and protection.
Build your own 10 inch kaleidoscope with this great kit!
Cool new Pi tee featuring ultra soft and light blue 100% cotton shirt.
Exciting magnet exploration for ages 8 and up!
Comprehensive collection of 30 fossils.
Every kid needs one of these spheres!
This high precision gyroscope will amaze you with rotational speed and ease of precision.
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