Day and Night

Day and Night


DIAGRAM OF THE SUN MOVING FROM THE WEST TO THE EAST
IN THE SKY

This diagram shows the Sun moving from the east to the west. As it progresses, it climbs higher and higher. Eventually, when its midday or 12:00, the Sun is at its highest point in the sky. It then gradually descends until it disappears into the west.
When the Sun appears in the east, we call it sunrise and you know it’s morning. When the Sun disappears in the west, we call it sunset and you know it’s evening. The stick also shows the shadows which the Sun’s rays cast.

DIAGRAM SHOWING THE ROTATION OF THE EARTH AND THE MOON
AROUND THE SUN

Earth: Our planet is continually moving. It’s spinning on its axis. If you look at it from the North Pole, it’s spinning anti-clockwise and if you look at it from the South Pole, it’s spinning clockwise. Half the Earth always points towards the Sun and half always points away. When the part of Earth we are on faces the Sun we receive light and energy and we call daytime. As the Earth spins, we eventually end up on the side that points away from the Sun. That half becomes submerged in darkness and shadows and we call it night-time.
It takes 24 hours for the Earth to spin on it’s axis 360°.
It takes 365 days(not a leap year) for the Earth to orbit 360° around the Sun.
Moon: The Moon moves constantly too! Just the same as the Earth, it turns on it’s axis once every 27.3 days. This is exactly the same rate that it orbits the Earth. Some people call this a lunar month, as it’s not the same as a month which can vary from 28-31 days.
It takes 27.3 for the Moon to spin on it’s axis 360°.
Sun: The Sun is stationary and does not move at all. However, the Earth orbit’s the Sun, and the Moon orbit’s the Earth. Both Moon and Earth are spinning on their axis.

MAP OF DIFFERENT TIME ZONES IN THE WORLD

You can tell the time by using sundials, as the shadows made are completely accurate(even if you can’t read it completely accurately). The further west you are, the later the Sun rises and the later it sets. When the time in London says 12:00 one in Cardiff to the west will say 11:48! So the time shown by a sundial is called the local time zone. So how did we find out the proper time in the first place? Until 160 years ago, people usually set their clocks and watches using a sundial. Their watches showed the local time. Nowadays, everybody in a particular country or time zone sets their clocks and watches to the same time.

The world is divided into time zones. The time in each zone is normally one hour different to those on either side. Some large countries, such as Australia and the USA, are divided into several time zones. Others, such as China and India, use the same time for the whole country.

The world’s countries fit loosely into a grid of 24 time zones.
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Again...this looks even worse without pictures. I'll do them. I swear.