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 Celestron digital microscope rises to a new level with the included adjustable-height stand.
Build your very own smart robot!
Create currents and discover gravity while exploring the theory of Lenz's Law with this kit!
Defy gravity with this cool balancing eagle!
Build your own metal detector robot!
Embark on a guided journey through the microscopic world, revealing its hidden creatures and unseen structures!