This science kit contains everything to create codes and write secret messages. Discover the science behind using acids and bases to make invisible ink, reveal mysterious messages using colored filters and light waves, learn to write in secret codes, and much more!
- Girls Only! Secret Message Lab keeps secrets safe with invisible ink and teaches the science behind the mystery!
- This kit contains everything young girls need to know to create codes and write secret messages
- Contains enough materials for two girls to share and protect messages
- For ages 8 and up