 The Little Lab Physics Beginner Experiment Kit can help you learn about mechanical physics by building simple machines such as levers, gears, and pulleys. Discover force and motion. $16.95 Sale! $15.26 |  Little Labs Navigation is the perfect science kit to learn how to use a compass, read a map, find your way in nature, and work with other navigational tools and methods. $16.95 Sale! $8.48 |  Stepping into Science Kit allows you to begin a lifetime of scientific investigation and understanding with 25 fun experiments in five key areas: nature, physics, chemistry, air, and water. $36.95 Sale! $33.26 |