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.
NEW 2016 DESIGN! This hip red tee features Pi to 1000 decimal places on an ultra soft 100% cotton shirt.
Build a model green house and 9 other green energy-related devices with this great kit!
Command robotic creations with this cool construction kit!
This toy combines the wonders of Sea Monkeys and glow-in-the-dark fun, all in one!
Build over 90 sound-based electronics projects with Snap Circuits' easy to follow instructions!
This illuminated orbiter is great for demonstrations in the astronomy classroom!