Tinkercad Valentine’s Day Keychains
Rachel
Fees
More from Rachel
A scytale cipher was originally used by the ancient Greeks and Spartans during wartime. They wrapped a cylinder in a piece of parchment to exchange…
Coding, computer science, encryption, Featured, Puzzle, screen free, unplugged
Red cabbage can be used as a pH indicator. Chop the cabbage into small pieces and place in a heat-safe bowl. Pour boiling water over…