CDV Concentration - (copy)

Try to find pairs of cards with matching terms. If you find a match a green "check" will appear and the cards will change to a picture.

<B>If they are <I>not</I> a match, a red "X" will appear. If you wait a second or two, both cards will turn over to the pattern side and you can choose two new cards. If you wish to keep one of the cards, click on it before it "turns over".