An egg-cellent
hiding place
Can you think of a more unsuspecting hiding place for a secret message than an egg? We can’t either! Learn how women from the Sealed Knot passed secret messages to each other using this fun technique. This experiment takes a while, so let’s get started.
ITEMS NEEDED
- Eggs
- Vinegar
- A razor blade
(ask an adult)
- A small piece of paper
- A pen
- Cold water
- A glass
STEP 1 Put an egg in a glass and submerge it in vinegar. Let the egg soak in vinegar for 4-5 hours.
STEP 2 While the egg is soaking, write out a secret message on the piece of paper using the pen. Fold up the message so it is small, but lays flat. We recommend using a piece of paper that is a little bigger than the size of a quarter.
STEP 3 Remove the egg from the vinegar and gently pat dry.
STEP 4 With the help of an adult, take the razor and cut a small slit into the egg and eggshell.
STEP 5 Next, take the folded message and slip it inside the slit in the egg.
STEP 6 Take the egg and place the egg in cold water and let it soak for 24 hours.
STEP 7 After 24 hours, crack the egg open and see if the hidden message is still inside.
THINGS TO CONSIDER
Do you think the egg looks different than a regular egg after the experiment?
Try using different color ink or a pencil and see if the experiment still works.
If you leave the egg to soak in water longer, say two days, do you notice a change in the egg or the condition of the message?