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Science - 3rd Grade
Standard 1 Objective 2
Classroom demonstration and activities will help students understand how the Earth's rotation creates day and night.
The rotation of Earths axis produces the night and day cycle. Earth makes one complete rotation on its axis each day, or every 24 hours. During this rotation, half of Earth is facing the sun, and is experiencing day. At the same time, Earths other half is away from the sun, experiencing night. The rotation of Earth seems to make the sun move across the sky during daylight and seems to make the stars move across the sky during night time. Earth also revolves around the sun about every 365 days or one year. The path that it takes around the sun is called an orbit.
Pre-Assessment/Invitation to Learn
Have students answer the first question on page 6 in their moon books about how we get day and night. Discuss with the class what they wrote in their journals.
Activity 1 - Day and Night Cycle
Activity 2 - Earth, Moon, and Sun
Help students visualize how Earth and the moon travel together in space around the sun with this enactment. Review what orbit means: the path an object in space follows as it revolves around another object. Review what revolve means: to circle around an object.
Homework & Family Connections
Conduct the same experiment at home with their families.
Read books about the moon and Earth.
Send home a list of websites and encourage student to look them up with their families. Share with their family the "Earth, Moon Orbits" activity.
Have students illustrate their moonbook pg. 6 how we get day and night.
Why do we have a year?
Write down the definitions in their journals.
Check for accuracy on page 6 of their journals.