Reach up and grab your head. Feel that? No, not your hair. And take off that hat in the house! Now . . . try again. Feel what's underneath your hair and skin? That's your skull! The bones of your skull are super-hard so they can protect your brain. Your brain is the most important part of your body, so you gotta keep it safe! (That's why you wear a helmet when you're biking, scooting, snowboarding, or doing any activity that might involve falling on your head . . . that's a time to keep it extra-safe!) If something whacks your head, your skull is what protects your brain from getting hurt. In this experiment, you're going to invent a skull. Then we'll smash it against a wall!(Don't worry. Smashing something is okay when it's a key part of an experiment.) Along with the materials to make your new skull, you'll be using one other big piece of gear: your actual brain! Your brain will give you ideas on how to make the skull. Then your brain will tell your eyes and hands how to build it. Having a brain is pretty cool, right? Excerpted from Crazy for Science with Carmelo the Science Fellow by Carmelo Piazza, James Buckley All rights reserved by the original copyright owners. Excerpts are provided for display purposes only and may not be reproduced, reprinted or distributed without the written permission of the publisher.