After observation, the second most important skill students will build in this proj- ect is the ability to look for the causes of observed effects. Kids will give the strangest answers when you ask why a car did something. Get them to look at the car and the ramp and come up with a plausible answer for your “why” question. When they have a plausible answer, ask them how to confirm if the answer is right. They could run a scientific experiment to verify their answer!