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Pack of 6 student books
Farms Long Ago
Puffer Fish
Understand the important role telescopes play in studying the stars & planets and in making space travel safe
From Ptolemy's Spheres to Dark Energy Community Helpers Pack of 6 student booksGrade: 6 12 The Chain Reactions series explains the history and development of some major 21st century scientific advances. This title tells the story of astronomy, from the ancient belief that all planets revolve around Earth to the latest discoveries about how fast the universe is expanding. Library bound, 64 pages.
US$ 175.00
US$ 1199.99
