Young scholars examine geologic time to scale. In this geologic time lesson, students create a time-scale metaphor that shows some of the Earth's important events. Young scholars present their metaphor to the class.

Students construct a geologic timeline the size of a football field. They work in small groups to calculate the yardage for significant events in the Earth's history and then as a class pace out all of the events.

Students model a paleontologist's activities. They identify dinosaur bones and reassemble them into a skeleton of an extinct reptile.