Grow amazing crystals that change color! Learn about the chemical reaction that causes the beautiful shift in colors, and examine the factors that influence the reaction. Watch in amazement as your yellow crystals shift their hue to blue! Conduct a chemical analysis to better understand why the color change occurs, and show off your crystal creations in two special, locking display cases!
Peace of Mind Guarantee
Rest assured-- when you buy this quality Thames and Kosmos product, you will be able to enjoy it for years to come. If there are any missing or broken pieces,we will replace them for free for you. If you lose or break any parts, we will replace them for you. All replacement pieces and refills for chemicals are available directly from Thames and Kosmos anytime! Quality lifetime support with every kit.
Build six solar-powered models with this fun kit!
This unique 4D triceratops model is a must-have for the dinosaur fan in your family!
The large realistic model has removable organs that can be studied and set back into the correct position.
Experience this sphere powered by the sun!
Easily assemble a working alarm motion detector!
Create your own super-versatile laser ray box for teaching optics with this set of three snap laser pointers.