Invisible ink

Fun acid/base experiment for kids of all ages. Uses only common household ingredients. No heat required.

Five different ways to create homemade invisible ink that can be revealed from a heat source like a candle OR from watercolor paint.

Animal Jam Academy is a free resource library housing fun, immersive educational content as it relates to science, technology, engineering & art.

Lemon juice secret writing! Make DIY invisible ink and sen secret messages. Plus learn the science behind how these messages are made!

Who doesn't like to send secret messages? People have been doing it for ages. In fact Giovanni Battista Della Porta, an Italian guy who lived about 500 years ago invented what I believe is the most creative way to send a secret message.

Turn after-school time into an exciting spy adventure! Learn how to create and decode secret messages with fun, easy activities for kids. Perfect for sparking creativity and mystery.

Homemade invisible ink that glows! This stuff is so fun to do treasure maps and secret messages with for kids! Tie it into a science lesson on phosphors!

Learn how to write secret messages with invisible ink! Using lemon juice and Q-tips, your kids can send top-secret messages to their friends and family.

When invisible ink technology progressed in the 20th century, the invisible inks of old became mostly a fun weekend experiment to do with our children.

How to make fun and easy homemade invisible ink recipes at home for kids that use everyday items in your kitchen. Fun for creating your own secret messages.