Wednesday, March 2, 2011

Science project

This is Ellen Tidy grade six space reporter. Right now I am drifting through space and you wouldn't believe what I've seen. The effects of centrifugal force , eclipses, the moon's phases and much more. Now I'll tell you a little about how this all began.

Suns, Planets, and Satellites, What they are and How they are created
                                        

Before any of the planets were created there were two molecules in space. These two molecules crashed into each other at such a speed that they created heat and started to spin. The spinning attracted everything in space to come towards it which is centrifugal force. All of the lighter objects went into the middle ( rocks and minerals) and the heavier objects were farther away (the gas planets). All of the rocks in the middle started to crash into each other and form planets. They were so hot that when they crashed into each other they stuck together. There is an asteroid belt left around the rock planets which are left over rocks and minerals. A star is a ball of heat that produces light and is held together by its own gravity. A planet is an object in space that orbits around a star, has an atmosphere and reflects light. A satellite is a body in space that orbits around another object. The moon is a satellite to earth and the planets are a satellite to the sun. Now I'll talk about eclipses and you'll learn all about the moon.

 Solar and Lunar eclipses, The phases of the Moon and The Moon's impact on the Earth
This is a diagram showing what a solar eclipse looks like.

An eclipse is when a body passes another and blocks its light source. There are two types of eclipses in space and they are a solar eclipse and a lunar eclipse. The moon is what covers the sun's light in a solar eclipse. Because of the size of the moon only a small part of the earth can witness the eclipse. From the distance we are from the sun the moon looks the same size because it is 1/400 the size of the sun and the sun is about 400 million km away. A lunar eclipse is when a planet is blocking out it's moon's light from the sun. Only a small amount of light reflects off the atmosphere on to the moon and because of that the weakest colour in the light spectrum is the colour of the moon. The weakest colour in the light spectrum is red.Before the moon was the moon it was another body or planet in space that got a little to close to the earth and got caught in its gravitational pull. The moon's orbital path around Earth takes about 28 days. On the first day it is a new moon, on the 7th day it is a quarter moon, on the 10th or 11th day is a half moon, the 14th day is when the moon is half way through its orbit, it is directly behind the earth and is full. From this point on in the moon's orbit it gets smaller again. On the 17th or 18th day the moon is half, the 21st day is a quarter and finally the 28th day is a new moon and another cycle is about to begin. The moon has its own gravitational pull that effects the Earth. The moon pulls the water in the oceans toward itself and when the earth spins away it gets pulled across the ocean before the moon lets go.Next I'll talk about Mars since I am going there.


 All about Mars

This is a picture of Mars with its two moons.

Mars is the planet 4th closest to the sun. It was named after the Greek god of war because the planet was red and looked like blood. Its moons are named Phobos and Deimos. Phobos was the god of panic fear, flight and battlefield rout and Deimos was the god of fear, dread and terror.Phobos and Deimos are Mars' sons which is why they are the moons of the planet Mars. Mars' core is made of iron and around the core is a lot of molten rock. Mars has a lot of hot spots under its surface that cause volcanoes. Mars has higher mountains, and deeper canyons than any other planet and is most similar to earth than any other planet.





I have witnessed these amazing sights and was glad to report back to you about them. I learned a TON about space and hope you have to. Who knows what wonders are left for you to explore in the never ending wonder of space. This is Ellen Tidy grade 6 space reporter signing out!


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