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❶The Moon was the first such celestial body that people knew about - it was always visible from earth!

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Then it continues a journey around the other side of the Earth, and rises again the next morning. The Earth rotates on its axis once every 24 hours, so that the Sun returns to the same position in the sky every day.

The Earth rotates counter clockwise, from west to east. The Earth travels all the way around the Sun once every year. The Moon travels around the Earth and it takes just less than 28 days for the Moon to complete its orbit.

Information on the Phases of the Moon Includes facts about the moon. Day time and Night time Includes a map showing which countries are having night and day time right now. The Reasons for the Seasons Why do we have seasons? Take the Moon Challenge Drag the Moons to their correct places in lunar cycles. Moon Calendar Showing phases of the moon each month. Space Quiz Game Interactive multiple choice Challenge. Can you beat the clock?

Virtual Model of the Solar System Explore the planets, comets and asteroids on an interactive virtual fly-through and then try and create the perfect world. Animation showing Orbits of Planets and time taken. These probes allow NASA scientists to explore the planet, take pictures, analyse soil and conduct experiments. The picture on the left is of one of the Mars Rovers on the surface of Mars.

Mars is named after the Greek God of War. It is sometimes also called the red planet, because most of its surface is covered in reddish rocks, dust and soil. Mars is ,, km away from the sun. Jupiter is the biggest planet in the solar system. It is a gas giant, rather than a terrestrial planet, and is made largely of hydrogen and helium. The large spot on Jupiter is actually a storm that has been raging for several hundred years! Jupiter was first visited by Pioneer 10 in and later by Pioneer 11, Voyager 1, Voyager 2 and Ulysses.

The unmanned spacecraft Galileo orbited Jupiter for eight years. In Galileo was crashed deliberately into Jupiter, to stop it from impacting on Europa, one of Jupiters moons that scientists believe may harbour some basic form of life.

Jupiter is ,, km away from the sun. Saturn is distinguished by its extensive ring system, but otherwise has several similarities to Jupiter. They are both gas giants. Saturn has at least sixty known satellites; two of which, Titan and Enceladus, show signs of geological activity, though they are largely made of ice.

The ring particles seem to be composed primarily of water and ice, but they may also include rocky particles with icy coatings.

Saturn is 1,,, km away from the sun. Uranus is the lightest of the outer planets, a type of gas giant that some scientists call an ice giant. As you can imagine from this nickname its atmosphere is very cold - the coldest in the solar system. The wind on Uranus can blow at over miles per hour! It was discovered by William Herschel, a famous astronomer, while systematically searching the sky with his telescope on March 13, Uranus has been visited by only one spacecraft, Voyager 2 on Jan 24 The picture on the left is an enhanced image of Uranus that was beamed back to Earth by Voyager 2.

Uranus is 2,,, km away from the sun. Neptune is the outermost planet of the solar system. It is slightly smaller than Uranus. Neptune has also been visited by only one spacecraft, Voyager 2, on Aug 25 Just like Jupiter, this is caused by violent storms. The weather is very extreme on Neptune - the wind on Neptune is the strongest on any planet, and blows at 1, miles per hour - as fast as a jet fighter plane.

Neptune is 4,,, km away from the sun. Pluto used to be classed as a planet of the solar system, but is now considered to be a dwarf planet, and a part of the Kuiper belt. The Kuiper belt is a vast collection of dwarf planets, asteroids, rocks, ice and dust that circle the sun, that extends for millions of miles beyond Neptune, on the outskirts of the solar system. As of mid, five smaller objects are classified as dwarf planets, all but the first of which orbit beyond Neptune.

Ceres ,, km from the sun Pluto 5,,, km, from the sun, formerly classified as the ninth planet Haumea 6,,, km from the sun Makemake 6,,, km from the sun Eris 10,,, km from the sun. The Moon is not a planet at all. It is one of more than three hundred smaller celestial bodies that circle the planets of the solar system. The Moon was the first such celestial body that people knew about - it was always visible from earth!

After , when astronomers observed moons around other planets, the word moon started to be used as a collective term for them all. Scientists know more about the Moon than any other planet or celestial body in the solar system, because it is the only other world that humans have ever visited. Between and , twelve astronauts visited the Moon , exploring, experimenting and collecting rocks and soil, to help us learn more.

The Moon has a gravitational pull on the Earth, and it this that causes the tides of the oceans. NASA launched an unmanned space probe in , called Voyager 1.

What is the Solar System?

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How many planets are there in our solar system? Until , there was thought to be 9 planets in the Solar System. In , the International Astronomical Union decided that Pluto is no longer a planet, so there are now only 8 planets in the Solar System.

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Homework Help: Search our sites: Science Games: Life Processes & Living Things. Humans. Plants. Food Chains. We live on planet Earth - just one of eight planets in our Solar System. The Sun is in the centre of our Solar System and it is our light source. Earth and space Why we have day time and night time on Earth, seasons and why the.

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Critical thinking curriculum journal - planets homework help. By / September 11, ; Today i went to this tutoring session where graduate students could read my essays and critique them and boy did they tear me up!!! samuel johnson essay on shakespeare. best english essay writers online. There are two main types of planets in the solar system. The four planets nearest the Sun—Mercury, Venus, Earth, and Mars—are called inner planets. They are rocky planets about the size of Earth or somewhat smaller. Jupiter, Saturn, Uranus, and Neptune are called gas giants. They are made up mostly of gases and have no solid surfaces.

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The two main categories separating the different genres of literature are planets homework help fiction and nonfiction Definition of regular - arranged in or constituting a constant or definite pattern, especially with the same space between individual instances, recurring. Myth functional resume for sales manager Man's Award-winning Mythology Homework Help. The new solar system may have hundreds of planets, including asteroids, moons, and dwarf planets. Rather than memorize hundreds of names, it’s more important to read more.