Earth, Moon, Sun
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Learn why seasons change. Discover how they’re different in the Northern and Southern hemispheres.
Learn why we have seasons in this hands on activity.
Students learn about and apply observing, sorting & classifying, and comparing & contrasting skills as they learn about the cycle of day and night.
8 images of different lunar phases showing the portion of the Moon lit by the Sun as the Moon orbits the Earth and as seen by us on Earth
Learn how people came to understand the source of cosmic radiation, as well as how this radiation impacts those who work in and travel on airplanes.