Copy of Sun, earth, moon
No Description
MORE DECKS TO EXPLORE
PRESENTATION OUTLINE
SUN, EARTH AND MOON
ALL YOU NEED KNOW!
THE EARTH
Photo by DonkeyHotey
The Earth-
The Earth is the largest of all terrestrial planets. It measures in with a diameter of 12,742 km.
The earth's shape very much resembles a slightly flattened sphere, this is due to the bulge of the equator and the gravitational pull of the moon.
The Earth is positioned 149.6 million km away from the sun. If we were to travel towards the sun at about 900kph it would take us 19 years to actually reach the sun!
The eight planets in our solar system are Mercury, Mars, Venus, Earth, Neptune, Uranus, Saturn and Jupiter (order in increasing size). The earth is the third closest to the sun and is distanced 1 astronomical unit (150,000,000 km) AU away from the sun.
There are 365 days in the Earth's calendar mainly because the path which it orbits along takes 365.25 days to complete.
This is the Earth's orbit.
Day and night occur because the earth rotates and spins on it's axis, (axis- an imaginary line passing between the North and South Pole) although we cannot feel this movement.
When the earth spins on its axis it revolves round the sun, as the earth is spinning around the sun different parts of the earth receive daylight from the suns rays. Because the earth is rotating it appears that the sun is moving across our sky when we are actually going around the sun.
Every single morning the sun rises in the east, travels across our sky and then eventually sets in the west. When the sun sets it then goes around to the other side of the earth and produces sunlight for that portion of the Earth
Untitled Slide
The tremendous force of the Earth's gravitational pull caused the Moons odd shape a long time ago, probably shortly after both of these planets were created. Many people relate the moon to looking a lot like a lemon.The moon's diameter is 3 474.8 kilometres.
ORBITS
Photo by Spirit-Fire
There are 28 days in the moons orbit because once scientist decided that there were 24 hours in a day they neede to find out how many 24 hour days it took for the moon to orbit the ears and the amount of days was 28.
The moons shape seems to change because on earth we see different parts of the lit part of the moon. As the moon orbits around the earth and goes to different positions in the earths gravitational pull we see different parts of the moons light
Untitled Slide
THE SUN
Photo by NASA Goddard Photo and Video
The Sun's near perfect round shape amazes scientists and astronomers. They believe that because it doesn't have a solid surface, that it should be slightly flattened. The Sun is almost the roundest object ever measured with a diameter of 1 million kilometres (1,000,000 km).
Untitled Slide
The Sun's rays provide the Earth with much needed sunlight, which is an absolute necessity for our climate, agriculture and our overall existence.
TIDES
Photo by Felipe Sepúlveda R.
Spring tides are the tides just after a full moon, these are the tides with the biggest difference between high and low water. They are high tides because the sun and moon are being pulled closer together.
Neap tides are tides that occur just after the third or first quarters of the moon. These tides have the least distance of high and low water. These tides occur when the moon and the sun are farthest away
Gravity is what keeps us on earth, if we didn't have gravity we would be flying into space like when we see astronauts. We are very lucky because our earth has just the right amount of gravity for us to live on. Other planets like Jupiter and Venus don't have enough gravity or oxygen therefore we are unable to visit or live there.
Untitled Slide
Untitled Slide
BIBLIOGRAPHY-
1) National Earth Science Techers Association (NESTA) 2012, Sun's Effect On Earth, UCAR and NCAR, accessed 9 September 2015, .
2) Solar System 2015, Wikipedia, accessed 9 September 2015, .
3) http://www.space.com/26684-moon-lemon-shape-tidal-forces.html
2) Solar System 2015, Wikipedia, accessed 9 September 2015,
3) http://www.space.com/26684-moon-lemon-shape-tidal-forces.html
