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Materials Cost:
Free  
Resource Type:
Assessment item  
Learning Time:
2 to 4 hours  
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This story-based lesson presents information on the early investigation into solar and cosmic X-rays, as well as the scientists working in pursuit of X-ray detection and imaging, that set the stage for a program of space-based astronomy. The lesson... (View More)

Audience: High school
Materials Cost: Free

In this activity, students are introduced to the importance of maintaining biodiversity and to citizen science. The resource includes three student worksheets, a data sheet, answer keys, and Web links. This is Lesson 2 in Biodiversity, part of... (View More)

Audience: Elementary school, Middle school
Materials Cost: Free per student

Learners will study the essential components and variables of an ion propulsion system. Activities include an on-line ion propulsion engine simulation and design. Included are changes in energy and fuel consumption as a result of variable changes... (View More)

Audience: High school
Materials Cost: Free
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