Looking for a fun way to get your kids excited about geology? How about a project where they can watch what typically takes ages occur, happen in front of their eyes in just a few days? ThinkBox Lava Rocks is a quick-start project, the initial set up literally takes five minutes, yet it provides days of fun. Your kids who will be amazed watching their crystals grow and change. The instructions are simple to read, written in large text, with the individual steps clearly mapped out even for early readers. Everyone loved how the rocks come in different sizes and colors resulting in different colored crystals and shapes. In today’s day of immediate gratification, parents felt that the slower pace of checking in a couple of times a day and observing changes was a great lesson. Reviewers thought the packaging was fantastic and added to the appeal of the product. They also appreciated that it comes with everything you need and that it all fits into a small box. The $15 price was seen as fair and more than appropriate.