With the National Geographic Spy Science Activity Kit, kids can conduct 10 fun secret missions and learn the techniques of spycraft! Packed with spy gadgets, this kit will provide kids with hours of fun while teaching them valuable skills like observation, note taking, organizing information, code breaking, and much more! Using invisible ink, decoder wheels, spy glasses, a periscope, and more, kids can complete 10 missions for the fictional Science Explorers Spy Agency. and become an elite agent! In addition to the spy skills they'll learn as they work through each mission, kids will learn the history of the devices, tools, and techniques used in espionage over time. Kids love role playing, and it doesn't get more exciting than playing spy games! With the tools, tech gadgets, and information in this science kit, they'll be a special agent in no time at all. Details: For ages 8 and up Contents: 2 decoder wheels (1 prefilled, 1 blank) Periscope Rearview spy glasses Invisible ink pen UV light Secret notebook 2 sticker sheets Spy badge Mission envelope (10 missions and spy science information)