findings, conclusions, or recommendations expressed in this material are
those of the developer, PASSPORT TO KNOWLEDGE, and do not necessarily
reflect those of the National Science Foundation.
To MARS with MER - KIDS' CORNER
You must have a browser that supports Java to play Concentrate!
A tile is flipped by clicking on its blue tile back. Begin play by
flipping two tiles, one at a time. If the tiles match, they will be
removed. If they do not match, they will be flipped back. Repeat this
process until all twelve pairs of matching tiles have been removed.
If you are successful, you can add your name to our score list!