Aligned to the 5th grade science TEKS, this set of task cards is a great review for the STAAR Test. Students are asked to find the one item that doesn't belong in the group of four words. They must know how the words relate and give a reason that one of the words does not belong. For example on one card, the choices are Aluminum, Brass, Copper and Iron. Students must recognize that these are items tested for magnetism and that Iron is the only one that is attracted to magnets, therefore it does not belong. The science TEKs are labeled on each card, so that you may use them individually throughout the year or at the end of the year altogether as a review. While there is one answer that makes sense for each card, I also accept other answers that have a good, logical reason to defend the choice. As an extension, challenge students to look for multiple answers!