Earth rotation
This series of learning objects focuses on the relationship between the Sun and the Earth, exploring the concepts of night and day, sunrise and sunset, and the apparent movement of stars.

earth rotation

Learning objects
LO ID
Years
Earth rotation: night and day
696
7-8
Earth rotation: sky watch
1128
7-8
Earth rotation: merry-go-round
1129
7-8
Earth rotation: stargazing
1130
7-8

Earth rotation: night and day
Using an animated model of the Earth, students explore how rotation is related to night and day, and time of day. Students investigate how the Sun shines on one side of the Earth while the other side is in darkness. They are challenged to answer a series of questions by experimenting with the model. For example, when the Sun rises in New Zealand, what is the approximate time in Sydney?

Earth rotation: sky watch
By interacting with the model, students are able to relate the changing position of the Sun, the Moon and stars in the sky to the rotation of the Earth. Students are challenged to answer a series of questions by experimenting with the model. For example: How much of the Earth is in shadow at any one moment?

Earth rotation: merry-go-round
By comparing views from a moving merry-go-round to views from stationary positions around the merry-go-round, students are introduced to the idea that apparent movement of objects may depend on the viewing frame of reference. Students then use the Earth rotation model to compare views from Earth to views of Earth from a stationary point in space.

Earth rotation: stargazing
Students are able to take time-lapse photos of the night sky from different places on Earth and then observe the pattern of star movement. Students discover that in some locations the stars appear to follow a straight line, while in others they appear to follow a curve, or even a circle.