Demonstrate understanding of the effects of astronomical cycles on planet Earth
In this report I will be talking about astronomical cycles on the earth and how it relate to day and night, temperature change over twenty four hours, season and temperature changes over the winter and summer in New Zealand. All of these will relate to different astronomical cycles which create effects on the earth.
Day and Night
Day and night is caused by the tilt of the earth, which is caused by the 23.5 degrees in the earth 's axis and the spinning of the earth. The earth is spinning, which around is on its own axis through the earth and starts at the north pole and goes to south pole the axis is on an imaginary line through the earth which it spins on. The earth spins on its axis from to west to east , which it take 24 hours for the earth to spin around once, causing only one side of the earth to receive sunlight causing day and one side to receive darkness causing the night.The times of day and night are constantly changing depending on the location of your earth and also the timing these are always changing.
A day is measured two ways. A sidereal day is about one complete day that is a full rotation but 4 minutes shorter than on a solar day which is 24 hours.
This means that the north and south pole will only receive half of sunlight each, because of the way the earth tilt and where the sun light is facing. That 's why some country are really hot because they face right at the sun and they have longer days because the sun takes longer to go away .
As a result of seasons, it change the length of day and night can vary by a few hours. When you see the sun shining in the sky it is day time and when y...
... middle of paper ...
...ge over twenty four hours, season and temperature changes over the winter and summer in New Zealand. All of these will show different astronomical cycles which create many effects on the earth.
I hereby declare that the work in this report is my own and written in my own words.
Signed: Will Porritt
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