5th Grade Spineless Wonders Challenge yourself on your invertebrate knowledge! You can't answer a high-point question until you have answered the lower-point questions in that category. Only six categories out of a possible nine will be played in each game, so play it again! Tools Activity created by: Delia M. Turner, Ph.D. This activity was created by a Quia Web subscriber. To learn how to make your own, just like this, click here.