Forty Something Parents

The Ins & Outs of Parenting

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Homeschool Science Project: Treasure Maps and Invisible Ink

Home School Science Project — Creating a Treasure Map With Lemon Juice?!  Here’s how we did it, our source, and items needed.  I hope you and your home school kids (or traditionally schooled kids) enjoy doing this project as much as we did.  :  )

How We Did It–

*My daughter Nixi and I made our maps according to instructions in the book **(see instructions at bottom of this post), then we gathered up some odds and ends…sparkly treasure, bundled it up in a paper towel, and buried it out in our yard where ‘X’ marks the spot on our maps.  I spray painted an X where we buried our treasure, and when my husband (Daddy) got home from work, he and Nixi hunted the treasure.

It was quite a kick, and I would definitely recommend this learning adventure to everyone who has kids or grand-kids; even nieces or nephews.  Heck..! Gather up the neighborhood kids and make a party out of it. The more the merrier!  :  )


We Checked Out This Great Book From Our Local Library


Invisible Ink Science Experiment


Recipe and Items Needed


Items Needed & Treasure to Bury


Nixi’s Map


Mom’s Map


We Spiced Things Up a Bit by Making One Map a ‘Trick Map’!


You’ll need:

-Paper (We used Resume Stock Paper)

-Lemon Juice, Cotton ‘Swab’ (Get it…?!  Swab!  hahaha)

-Treasure to Bury

-Spray Paint or Crafty ‘X’ to Mark the Spot

-Oven…heated to 400 degrees

Juice your lemon, then dip your cotton swab in the lemon juice, then ‘paint’ your map.  Steady as she goes, since the ink disappears rather quickly.  Place your map onto a cookie sheet and place in a 400 degree preheated oven for 30 minutes.  Careful when you take it out, it’ll be hot!  Gather your treasure, bury it, mark the spot with an X, and let your littlest Pirates (or the bigger scally-wags) hunt for the treasure.  Fun all around!


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Home School Science Experiments

Making BLUE GOO —