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Standard II - Seasons
Standard: Students will understand how Earth’s tilt on its axis changes the length of daylight and creates the seasons.
Objective 1: Describe the relationship between
the tilt of Earth’s axis and its yearly orbit around the sun.
Objective 2: Explain
how the relationship between the tilt of Earth’s axis and its yearly
orbit around the sun produces the seasons.
Strategies
Science Benchmark
The appearance of the lighted portion of the moon changes in a predictable cycle as a result of the relative positions of Earth, the moon, and the sun. Earth turns on an axis that is tilted relative to the plane of Earth's yearly orbit. The tilt causes sunlight to fall more intensely on different parts of the Earth during various parts of the year. The differences in heating of Earth's surface and length of daylight hours produces the seasons.
The appearance of the lighted portion of the moon changes in a predictable cycle as a result of the relative positions of Earth, the moon, and the sun. Earth turns on an axis that is tilted relative to the plane of Earth's yearly orbit. The tilt causes sunlight to fall more intensely on different parts of the Earth during various parts of the year. The differences in heating of Earth's surface and length of daylight hours produces the seasons.