Mood rings were invented in 1967 by a man named Marvin Wernick, who saw a great idea for a toy when he saw one of his friends take a child's temperature by using a strip of thermotropic material. A mood ring is essentially a liquid thermometer that changes color according to the temperature on the wearer's skin. It is thought that this may indicate the mood of the wearer, as some claim that body heat fluctuates with the emotional state of the wearer. This is no ordinary mood ring, however--it features a cool flame effect when changing colors. Highly recommended when trying to find out what your loved one is really feeling--or if you need a small but neat stocking stuffer, gag gift or novelty toy!
Note: Ring comes in a variety of sizes. Although we do try and accommodate requests for specific sizes,we cannot guarantee which size will be sent to customer.
Warning: Choking hazard due to small parts. Not for children under 3 years old.
Great premium general purpose KingSeal Nitrile gloves in size SMALL. Not for medical use.
Professional Powder-Free Textured Nitrile Exam Gloves with Aloe, Size Large
These goggles meet the ANSI Z87.1, 2010 High Impact standards.
Save with this large package of 300 medium-size nitrile exam gloves!
Box of 100 X-SMALL nitrile exam gloves.
These goggles meet the American National Standards Institution (ANSI Z87.1) and Canadian Standards (CSA Z94.3) regulations.
The Ball of Whacks is the perfect creativity tool for innovators, artists, engineers, writers, students, and you!
This smaller transportable Van de Graaff Generator will easily fit in any classroom!
This advanced physics kit is perfect for older children already versed in physics knowledge!
Illuminate both your room and your mind with this ingenious Periodic Table Lamp.
Build a robot that's an artist too!
This classic desk toy will keep you amused!
At xUmp.com you will find a large selection of scientific products carefully curated by real scientists and educators. We sell everything from educational toys, teacher supplies for science classroom, lab equipment, science toys, science fair supplies, classroom equipment, chemistry glassware, chemistry lab equipment, physics demos, electronics supplies, robots, science kits to geeky science gifts.