University of Texas at Austin
The University of Texas Mc Donald Observatory: Spectroscope
This instructional activity guides young scholars to build a spectroscope, use it as a tool, and interpret their observations by applying concepts of conservation of energy and properties of matter.
CK-12 Foundation
Ck 12: Evolution of the Atomic Model
[Free Registration/Login may be required to access all resource tools.] Students take a closer look at how our understanding of the atom has evolved over time.
Chicago Zoological Society
Chicago Zoological Society: Zoo Explorer: Black Footed Cat
In addition to quick facts, the Brookfield Zoo presents information on the social and eatings habits, appearance, conservation matters, and other characteristics of the black-footed cat.
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