Students are invited to test their engineering skills in Texas Woman’s University’s 15th annual Edible Car Contest. Registration is open to students in grades 6-12, as well as those attending TWU. Cars must be built entirely of food (edible to humans) and total cost of materials shouldn’t exceed $15. Cars will be judged on durability, creativity, design and performance. Cash prizes totaling $600 will be awarded to the winning team. Registration closes Feb. 24, 2013. For more information or to register, call 940.898.3325.