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Science - 3rd Grade
Standard 1 Objective 2
Classroom activity helps students understand why stars appear to move across the night sky.
The Earth rotates on its axis at a rate of one full turn per day. This motion is what makes day and night. The daily rotation also causes observers (people) on Earth to see a changing star field as they look at the sky. It's not that the sky is moving, but the Earth moves relative to the sky.
Pre-Assessment/Invitation to Learn
Encourage students to imagine themselves standing on the model Earth globe tonight as they observe the stars with their family. Rather than imagining the stars moving past them, have students imagine themselves moving pats the stars.
Students explain to their families how the Earth is moving not the sky.
Read books about star patterns.