Lemon juice invisible ink

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.

Learn how to make invisible ink ghosts for a spooky surprise! Draw ghosts in white crayon, then paint over to watch them magically appear.

Make invisible ink with lemon juice. Lemon juice is an organic substance that oxidizes (which means it reacts with oxygen) and turns brown when heated. Diluting the lemon juice in water just makes it harder to notice the invisible message on the paper. The invisible ink burns faster than the paper so it turns brown first! Other substances which work in the same way include orange juice, honey, milk, onion juice, vinegar and wine.

Today I'm sharing another cool science experiment inspired by Disney's Big Hero 6. This activity is inspired by the crazy and awesome character Fred, and his love of all things super hero and spy. Your

Create invisible ink with lemon juice! It is a lot of fun, and you can pretend you are a secret agent as you keep all your secret codes and messages hidden from others.

Create invisible ink with lemon juice! It is a lot of fun, and you can pretend you are a secret agent as you keep all your secret codes and messages hidden from others.

This invisible mystery writing science experiment will stump everyone! Let us show you how to make your own invisible ink with lemon juice in a chemistry lesson for kids from The Children's Museum of Indianapolis. Great for a fun kids spy activity or kitchen chemistry unit.

my son was super excited to try this invisible ink with lemon juice recipe out ! we love to act like "spies" around these parts. you take lemon juice and a q-tip for writing...and paper

Write secret spy messages with lemon juice and reveal them with an iron (parents can help with this part, but no peeking!).

Send invisible ink messages using lemon juice. In this clip from Australia’s The Curiosity Show, science educator and co-host Deane Hutton demonstrates