Natural crystals take thousands--even millions--of years to form, so it isn't often that a budding young geologist gets a chance to watch them grow. Space Age Crystals--a series of crystal-growing kits based on experiments performed by astronauts--cuts that time down to days as you grow glittering crystals in your own home. This kit contains the chemicals you need to grow "quartz," "amethyst," "fluorite," and "emerald" crystals. Follow the clear, comprehensive instructions and in about a week you'll see fully formed crystals looking very similar to their natural counterparts. A great way for parents and children to spend time and learn together. --Lisa Whipple
This product contains small parts and is a choking hazard so not suitable for children under 3 years old.