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Learn how to build a Secchi disk and use it to make water transparency measurements following the GLOBE protocol for water transparency measurement with a Secchi disk. This resource is part of the GLOBE Program Hydrosphere Protocol eTraining.

Keywords: GLOBE
Audience: Middle school, High school, Higher education
Materials Cost: Free

In this virtual field experience, learners construct and use a clinometer to measure the height of a tree on level ground using the GLOBE protocol for measuring tree and shrub height. This resource is part of The GLOBE Program Biosphere Protocol... (View More)

In this virtual lab experience, learners simulate measuring soil moisture and soil bulk density following the GLOBE protocol for NASA's SMAP (Soil Moisture Active Passive) Earth satellite mission. This resource is part of GLOBE Pedosphere (soil)... (View More)

Keywords: Soil moisture
Audience: Middle school, High school, Higher education
Materials Cost: Free

In this online interactive, learners will explore how scientists learn about the composition of an asteroid by studying energy and neutrons that emanate from it. Includes audio (and transcription) explaining the diagram.

This interactive, online activity provides a method for generating waves using a computer. Students can select the energy they want the waves to have, observe how the waves appear on the screen, and then measure the frequency and wavelength of the... (View More)

Audience: Middle school, High school
Materials Cost: Free

In this assessment activity, students generate a data sample from either the Hubble Deep Field-North or Hubble Deep Field-South images, and compare the sample to data from the unselected field. This provides students with a real-life example of how... (View More)

Audience: High school
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