The molecules and atoms vibrate at higher temperatures and begin to push apart from each other. This phenomenon is known as thermal expansion. Simply heat the brass ball for two minutes. This will cause the ball to expand; hence it will not fit through the ring. When the ball cools down, it will once again fit smoothly through the ring. Great for the classroom or the home laboratory!
This superb chemistry set features 350 mind-boggling experiments!
Head into the lab for an in-depth investigation of genetics and DNA!
This high precision gyroscope will amaze you with rotational speed and ease of precision.
A combination of three of our great discovery toys, all in one package!
Every kid needs one of these spheres!
Shake the Pet Tornado clockwise and watch the mini tornado funnel form before your eyes!
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