In a series of fun and involving hands-on earth science experiments, kids learn why the Earth bulges at the equator, demonstrate the movement of the Earth's axis, determine how the composition of the Earth affects its motion, and replicate the cause of the day-and-night cycle. They will also determine why the sky is not dark as soon as the Sun sinks below the horizon, learn how salt beds are formed, demonstrate how air takes up space, observe the effects of cool and warm temperatures on air movement, and replicate the formation of sea breezes. Featuring color illustrations and safe, simple step-by-step instructions, Janice VanCleave again shows just how much fun science can be.