"A Perfect STEM Toy: Gives pupils an opportunity to use their knowledge of electric circuits and switches to produce a motorised vehicle. Let's Learn: â?¢ Make and use simple series circuits. â?¢ Learn to use solar energy to transform into power. Analyze how friendly with environment. â?¢ Understand and use mechanical systems, e.g. gears, wheels, axles and bearings. â?¢ Build and reinforce structures. â?¢ Measure length and time; calculate average speed. "