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Filters: Your search found 53 results.
Topics/Subjects:
The nature of science  
Learning Time:
10 to 30 minutes  
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Now showing results 41-50 of 53

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 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 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

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)

This introductory lesson introduces the tool of scientific inquiry, beginning with observations inside and outside of the classroom, looking for changes, perspectives, and patterns. Measuring tools as simple as feet and fists are employed initially,... (View More)

In this introductory activity, students are introduced to the fundamental tools of scientific inquiry: observing, identifying changes, perspectives and patterns. Materials needed include student journals, pencils, crayons, plastic sample bags,... (View More)

Audience: Elementary school
Materials Cost: 1 cent - $1 per student

In this inquiry investigation, students learn that while the Sun appears to move around the Earth, in fact it is the Earth spinning around on its axis while the Sun remains stationary. Materials suggested for this activity include an easel or wipe... (View More)

This introductory lesson introduces the tool of scientific inquiry, beginning with observations inside and outside of the classroom, looking for changes, perspectives, and patterns. Measuring tools as simple as feet and fists are employed initially,... (View More)