Inventors sometimes create things just for fun, but most of the time, they're inspired to solve a challenge. In this kit, the challenges are open-ended goals. There's no right or wrong way to achieve the challenge. To succeed, all you need to do is complete the goal! The 10 challenges are designed and kid-tested to be, well, challenging. Your first design probably won't work perfectly, and that's okay! When inventors experience failure, they don't give up. Instead, they ask, "What isn't working, and how can I fix it?" But don't worry, you don't need to figure out everything from scratch. We've included helpful hints and three starter ideas with every challenge so you can jump right in and start inventing.