[Free Registration/Login Required] In this unit children learn about the shapes and relative sizes of the Earth, Sun and Moon. Using models they learn how the three bodies move relative to each other and how these movements relate to...

[Free Registration/Login Required] This flipchart could be a unit plan. It is broken down to observing and comparing the day and night sky, comparing the properties of the moon and the sun, and observing the pattern of the moon phases.

[Free Registration/Login Required] This flipchart demonstrates how the positions of the Earth, Moon and Sun cause phases of the Moon. It also illustrates the positions of the Earth, Moon, and Sun during a day and a month's time.

[Free Registration/Login Required] The history of our calendar is presented through the passage of time with complete cycles of seasons in ancient history providing a starting place. Complete cycles of seasons are discussed and the...