Library

Data: Uncertainty, Error, and Confidence - There is uncertainty in all scientific data, and even the best scientists find some degree of error in their measurements. This module uses familiar topics – playing baseball, shooting targets, and calculating the age of an object – to show how scientists identify and measure error and uncertainty, which are reported in terms of confidence.
National Science Education Standard Equivalent:
    History and Nature of Science / Nature of Scientific Knowledge

The Carbon Cycle: What Goes Around Comes Around - This module provides an overview of the biogeochemical carbon cycle. Major sources and sinks of carbon are discussed as well as the impact of human activities on global carbon levels.
National Science Education Standard Equivalent:
    Earth and Space Science / Geochemical Cycles

The Hydrologic Cycle: Water's journey through time - This module discusses the hydrologic cycle and its impacts on the planet Earth. Additionally, the module addresses connections between the hydrologic cycle, climate and the impacts humans have had on the cycle.
National Science Education Standard Equivalent:
    Earth and Space Science / Geochemical Cycles

The Nitrogen Cycle: Of Microbes and Men - This module provides an overview of the nitrogen cycle and the chemical changes that govern the cycle.
National Science Education Standard Equivalent:
    Earth and Space Science / Geochemical Cycles

The Rock Cycle: Uniformitarianism and Recycling - This module addresses the rock cycle, including the historical development of the concept. The relationships between uniformitarianism, the rock cycle, and plate tectonics are explored both generally and through the specific example of the Cascade Range in the Pacific Northwest.
National Science Education Standard Equivalent:
    Earth and Space Science / Changes in Earth and Sky