Comparable middle-years Earth and space science internationally includes seasons from axial tilt, lunar phases, eclipse geometry, gravity and tides, and evaluating physical or digital astronomical models. Exact sequencing varies by jurisdiction; AC9S7U03 remains the authoritative Australian alignment here.
Year 7 Science · AC9S7U03
Earth, Sun & Moon Cycles
Use models of changing Earth–Sun–Moon positions to explain seasons, tides, lunar phases and eclipses, and evaluate what those models can and cannot show
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Comparable middle-years Earth and space science internationally includes seasons from axial tilt, lunar phases, eclipse geometry, gravity and tides, and evaluating physical or digital astronomical models. Exact sequencing varies by jurisdiction; AC9S7U03 remains the authoritative Australian alignment here.
- A model shows the Southern Hemisphere tilted toward the Sun. Explain two observations that should follow.
- A full moon occurs but there is no eclipse. Explain why.
- A tide chart shows a smaller range near first quarter than at full moon. Explain using relative positions.
- Evaluate a globe-and-lamp model that uses very inaccurate sizes and distances but correct tilt.
- Explain how you would responsibly compare a specific First Nations Australian eclipse record with a contemporary astronomical model.
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AC9S7U03 - Earth, Sun & Moon Cycles
Example 1
A model shows the Southern Hemisphere tilted toward the Sun. Explain two observations that should follow.
Example 2
A full moon occurs but there is no eclipse. Explain why.
Example 3
A tide chart shows a smaller range near first quarter than at full moon. Explain using relative positions.
Example 4
Evaluate a globe-and-lamp model that uses very inaccurate sizes and distances but correct tilt.
Curriculum examplesCopied content
Comparable middle-years Earth and space science internationally includes seasons from axial tilt, lunar phases, eclipse geometry, gravity and tides, and evaluating physical or digital astronomical models. Exact sequencing varies by jurisdiction; AC9S7U03 remains the authoritative Australian alignment here.
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Comparable middle-years Earth and space science internationally includes seasons from axial tilt, lunar phases, eclipse geometry, gravity and tides, and evaluating physical or digital astronomical models. Exact sequencing varies by jurisdiction; AC9S7U03 remains the authoritative Australian alignment here.
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Comparable middle-years Earth and space science internationally includes seasons from axial tilt, lunar phases, eclipse geometry, gravity and tides, and evaluating physical or digital astronomical models. Exact sequencing varies by jurisdiction; AC9S7U03 remains the authoritative Australian alignment here.
Curriculum alignmentStart here
Comparable middle-years Earth and space science internationally includes seasons from axial tilt, lunar phases, eclipse geometry, gravity and tides, and evaluating physical or digital astronomical models. Exact sequencing varies by jurisdiction; AC9S7U03 remains the authoritative Australian alignment here.
Comparable middle-years Earth and space science internationally includes seasons from axial tilt, lunar phases, eclipse geometry, gravity and tides, and evaluating physical or digital astronomical models. Exact sequencing varies by jurisdiction; AC9S7U03 remains the authoritative Australian alignment here.
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