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This Spanish web site explains why we need to study objects in space at many wavelengths. It includes a general overview of what we learn in each part of the spectrum and why we need to send telescopes into space.

Audience: Informal education

In this demonstration, an egg is used as a model of the Earth. The egg is tapped gently, to create cracks in the shell. The pieces of shell are analogous to the Earth's plates, and the cracks are used to explain plate boundaries. Using the egg, the... (View More)

In this activity, students use marks on a 1.4 m strip of paper to simulate light wave frequencies and measure the time it takes for different frequencies to pass through the "viewer" made from a manila folder. Students learn that different colors of... (View More)

This is an online lesson which introduces the concept of astronomical filters and their connections to imaging different objects in space. Learners will explore perceptions of images as seen using different colors of light, construct a filter wheel,... (View More)

Audience: Middle school, High school
Materials Cost: Free

Students compare soils sampled from different environments and describe their color, texture, and composition. Samples of different soils are mixed with water in small vials, and water soil profiles are compared for difference in particle size and... (View More)

This activity introduces learners to the visible portion of electromagnetic spectrum. A visible spectrum is projected in the classroom using a diffraction grating and learners reproduce it using colored pencils. Filters are also used to block... (View More)

In this activity, students build an obstacle course for a flashlight beam using file cards, hole punch, clay, and observe that light travels in a straight line and demonstrate the concept of light extinction. The resource is part of the teacher's... (View More)

In this problem-based learning activity, students explore the economic advantages and tradeoffs associated with grazing on public lands. Students calculate the fees paid by a rancher to graze cattle on Bureau of Land Management (BLM) property, and... (View More)

Audience: High school
Materials Cost: Free per group of students

Slinky toys are used to demonstrate how primary (P) and secondary (S) waves travel in earthquakes. The resource is part of the teacher's guide accompanying the video, NASA SCI Files: The Case of the Shaky Quake. Lesson objectives supported by the... (View More)

In this activity, students examine everyday objects with a flashlight and determine if they are transparent, translucent, or opaque. Common household materials such as wax paper, plastic wrap, aluminum foil, tissue, and food coloring are required.... (View More)