Educational Insights Nancy B's Science Club Black Light Illuminator & Nature's Mysteries Journal Become a secret science sleuth with this mysterious black light activity set! Find and observe rocks, insects, and flowers that glow under black light; make gelatin that glows; detect counterfeit money; and much more! 22-Page activity journal and super cool scientific tool encourage kids to pursue their natural love of science! Includes handheld/stand-up black light with 3 LED black lights and textured grippers; invisible ink pen; and 22-page activity journal. Soon-to-be scientists learn about UV light with hands-on experiments and activities. Write secret notes with the black light illuminator invisible ink pen, too! Part of the Nancy B's Science Club line, designed to encourage scientific confidence. Requires 2 AA batteries (not included).