Let the star's color be the guide! The color of a star indicates its temperature and its mass and distance affect the gravitational force. The lesson presentations address these concepts as well as how the theory of special relativity...

Combine science and social studies with this collection of notes on ancient astronomy. Ideas propagated by early scientists influenced the way people viewed life and our place in the universe. Examine the philosophies of Aristotle,...

With graphic organizers galore, learners will follow the changes of church and state in early colonial America. They look at the differences between the pilgrims and the puritans in terms of beliefs and life ways. Myths and...