Browsing by Subject "Grades 5-8"
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Item Equatorial Sundial(McDonald Observatory, 0000-00-00) University of Texas at Austin; Mcdonald ObservatoryItem Reflective Solar Cooker(McDonald Observatory, 0000-00-00) University of Texas at Austin; McDonald ObservatoryItem Rock Cycle(McDonald Observatory, 2000) University of Texas at Austin; McDonald Observatory