Sun, Moon, and Earth system

Sun, Moon, and Earth system

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  Have your own“TAKE-NOTE CHART” THE EARTH Diameter Mass Distance from the Sun Days of Revolution around the Sun Hours of Complete Rotation
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  Located far fromthe centre of the galaxy called the Milky Way is a relatively insignificant star which we call the Sun. Surrounding it is a collection of planets, moons and other objects which together form our solar system.
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  The Sun isa large ball of very hot gas, mostly hydrogen and helium. It is the power house of the Solar System. It's our nearest star. Scientists can tell what is going on inside a star from its color. Without the sun there would be no life on Earth. We depend on the sun for energy.
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  With a diameterof 1 392 530 km, the Sun is a huge ball of gas. It has 333 000 times the mass of the Earth and is composed of 92% hydrogen, 7.8% helium and less than 1% heavier elements. It is the source of all the light, heat and energy that is necessary to create and sustain life on the Earth.
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  THE SUN’S INTERIOR Withinthe Sun there is a definite structure. At the centre and extending out to about a quarter of the Sun’s radius, is the core. Temperatures within the core are approximately 15 million degrees celcius and it is here that all the energy of the Sun is created.
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  Diameter: 12 756km Mass: 6.57x10 Average distance from Sun: 149 597 900 km Orbital period: 365.256 days (1 year) Rotation period: 24 hr (1 day) Number of known satellites: 1 (natural), 7000+ (artificial) 24
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  Earth is thethird planet from the Sun and is the largest of the small, rocky, terrestrial-type planets. Of all the worlds in our solar system, it is unique in that the composition of its atmosphere and the presence of great oceans of water allow life to exist and flourish on its surface.
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  HOW BIG ISTHE EARTH? The Earth is 12,742 km in diameter. It's the largest terrestrial planet in the solar system. The Earth weighs 5,973,000,000,000,000,000,000,000 kg. (That's nearly 6 trillion kilograms) HOW OLD IS THE EARTH? Scientific evidence shows that the Earth is 4.6 billion years old.
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  Do you knowthat everyday and for one year we are travelling the distance of 940 million kilometers at the speed of 107,000 kilometers per hour without leaving our homes and being absent from work or school? Planet Earth functions as spaceship that brings us around the sun in the counterclockwise direction (west to east). Such motion is called revolution and one complete journey the sun takes 365 ¼ days.
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  Perihelion is whenthe earth is closest to the sun in its orbit around the sun. This takes place on January 3rd. The earth is 147 million km. away from the sun. Aphelion is when earth is farthest from the sun in its orbit around the sun. This takes place on July 4, the earth is 152 million km. sway from the sun.
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  WHAT IS ROTATION? Rotationis the movement of the earth around its axis once in 24 hours causing day and night. (diurnal motion) THE EFFECTS OF ROTATION ARE : 1. Parts of the Earth have day and parts of the earth have night-results in the occurrence of day and night. 2. It creates a centrifugal force which results in the shape of the earth, being an oblate spheroid (flattened at the poles and bulging at the equator.)
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  The effects ofrevolution are: 1. The change of seasons 2. The varying lengths of day and night. 3. The changing altitude of the midday sun at different times of the year
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  1. The Earthspinning on its axis. Rotation Revolution2. Going around a larger body. Rotation Revolution Revolution 4. Causes the Earth’s seasons. RevolutionRotation 5. Creates a year. 3. 24 hours. Rotation Revolution RevolutionRotation 6. The moon going around Earth. RevolutionRotation
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  Diameter: 3476 km Averagedistance from Earth: 384 402 km Orbital period: 29 days 12 hr 44 min or 27 days 19 hr 18 min Rotation period: 27 days 19 hr 18 min or 28 days
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  The Moon travelsaround the Earth in an elliptical (oval shaped) orbit. Its distance from the Earth varies from 356,000 km to 407,000 km. Furthermore, having only one- eightieth of the Earth’s mass, means that the surface gravity of the Moon is just one-sixth of the Earth’s. This means that a 60 kg person would weigh* just 10 kg on the Moon.
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  The Moon hasno atmosphere because its gravity is too weak to hold on to any gases it may originally have had. As a result, temperatures vary considerably from –184 °C at night to 101 °C at noon. Since the poles receive constant light and heat from the Sun, they have a constant temperature of –96 °C.
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  Earth Revolution Planet Earth ROTATION or REVOLUTION