How fast is 120 kilometers per hour? How heavy are 4 tons? Units of measure are abstract—until, that is, they are contrasted with other quantities. The entertaining juxtapositions in How Big Is Big? How Far Is Far? make dimensions and measurements more comprehensible for children.

The book features amusing comparisons that make units of length, distance, weight, speed and time easier to grasp. The Queen of England’s crown, for example, weighs more than 100 portions of cotton candy. It would take eight days of travel in an elevator through the Earth’s center to reach the other end. When the world’s oldest living tortoise was born, there were no electric lights, telephones, cars, or airplanes.

时速120公里有多快呀？4吨是有多重呢？每个测量单位都是抽象的。这里的乐趣是大有多大？远有多远？让测量单位在小朋友眼里更加地易于理解。

这本书呈现出有趣的比较，使单位的长度、距离、重量、速度和时间更容易掌握。

英国女王的王冠，例如重量重超过100份的棉花糖。需要八天在电梯里旅行通过地球的中心到达另一端。世界上最古老的活乌龟出生时，没有电灯、电话、汽车、和飞机。