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Educational Level:
Upper elementary  
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Documentary  
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Now showing results 11-20 of 21

This video introduces the measurement of dissolved oxygen in a water body as an important indicator of ecosystem health, and demonstrates students analyzing a water sample for dissolved oxygen. The resource includes a video and a written transcript,... (View More)

This video demonstrates students measuring the acidity of water, using pH indicator paper and a pH meter. The resource includes a video and a written transcript, and is supported by the Water pH Protocol in the GLOBE Teacher's Guide. This is one of... (View More)

This video demonstrates students measuring the alkalinity of a water sample, using an alkalinity test kit. The resource includes a video and a written transcript, and is supported by the Alkalinity Protocol in the GLOBE Teacher's Guide. This is one... (View More)

This video describes how to select a soil infiltration study site, and demonstrates procedures used when taking soil infiltration in the field. Instructions for fabricating a necessary piece of field equipment, a dual-ring soil infiltrometer, are... (View More)

This video highlights students taking scientific measurements to support investigations in atmospheric science, hydrology, soils, and land cover. It shows students reporting data through the Web, creating scientific visualizations for analysis, and... (View More)

This video highlights students taking scientific measurements to support investigations in atmospheric science, hydrology, soils, and land cover. It shows students reporting data through the Web, creating scientific visualizations for analysis, and... (View More)

This video describes how to select a soil temperature study site, and demonstrates the procedure students use when taking soil temperature measurements in the field. The resource includes a video and a written transcript, and is supported by the... (View More)

Audience: Elementary school, Middle school, High school
Materials Cost: Free

Focusing on air, water, land and life, this video describes how these components are connected in the Earth system through the flow of energy, cycles of water and biogeochemistry. Methods of studying the Earth system, ranging from field observations... (View More)

This is an activity about science careers. Learners will answer questions prior to and after viewing an online video about careers for solar scientists and astronomers. This activity requires access to the Internet and, ideally, a method of... (View More)

Audience: Elementary school

This video demonstrates students measuring the transparency of water, a measure of water quality, using a Secchi disk or turbidity tube. Field measurements of water temperature are also shown. The resource includes a video and a written transcript,... (View More)