Halle Lanier tests out the power pedal bike during the Hudson Highland Nature Museum’s annual Earth Day celebration on April 21. Pedaling the bike fast enough illuminates a light on the handlebar, but, on average, children are only able to keep pedaling for about 20 seconds before succumbing to exhaustion. The exercise is designed to teach children to remember how they felt as they take that same 20 seconds to walk from their bedroom to the kitchen without turning off the light as they exit.