See how thin the Earth's crust really is with our virtual crust measurement game! This allows you to use different objects (like a penny, toothpick, a brick, car tire, truck, plane ect.) to measure how thin it actually is. You will sit in front go the screen choosing the different objects and comparing the thickness! Challenge your friends and family to see who can guess the closest to it's actually thickness. Whoever is closest, wins a HUGE prize!