Your mission

Professor Mouse locked her lab safe five ways. A magnet pulls on iron and steel, but not on most other things, not even every metal. Every magnet has two ends called POLES, a north and a south. Opposite poles pull together. Poles that are the same push apart. The professor left her experiments running. Figure out what they show.

How to crack a lock

  • Pick any lock from the menu at the top. You can solve them in any order.
  • Read every clue before you start. One clue alone is never enough.
  • Use scratch paper. Draw pictures, make lists, and cross things out.
  • Tap the buttons to build your answer. Then press "Try the lock".
  • A lock will not tell you which part is wrong, so be sure before you try.

My badges

Teacher note

Teachers: type the password to see the answer key.