In this activity students design and execute an experiment through which they will learn the distinctions between density, buoyancy, and volume. Students are asked to imagine a staysail schooner loaded with mid-ocean ridge basalt as it floats in a swimming pool in Woods Hole. They must determine what will happen to the water level if all the basalt is dumped over the side into the pool. Posing an ... Full description.

In this lesson, students will learn that geological time can be measured in several different ways, providing independent lines of evidence for measuring deep time and sequencing geological and biological events of the past. Students explore different methods of measuring geological time, comparing the time dimensions, mechanisms, and materials used for each. Full description.

This National Aeronautics and Space Administration (NASA) site provides classroom resources about the Moon. A teacher's guide contains basic detailed information about the Moon, such as the lunar landscape, craters, and Moon rocks. The lesson plan and activities sections cover phases of the Moon, lunar landforms, a Lunar Prospector model, and orbits. Full description.