(Back to Sunlight Observation) If
your students are tracking sunrise and sunset times, they may have
noticed these things this month: The sun continues to make a comeback,
and daylength is changing more quickly. Days continue to get longer
and warmer.
Why? The strongest rays of the sun hit north of the equator in the spring. After the summer solstice (around June 21), days slowly get shorter and the sun appears to head south again. The sun doesn't actually move, but it appears to because of Earth's tilt. Our hemisphere tilts toward the sun in the summer and away from the sun in the winter.
Why
does all this matter?
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