## Sunday, 11 December 2011

### The Size and Distance Between the Earth, the Moon and the Sun.

The Size and Distance Between the Earth, the Moon and the Sun.
The Size of the Sun, the Earth and the Moon.
1. The Sun is much bigger than the Earth and the Moon.
2. The diameter of the Sun is about 1 400 000 kilometres.
3. The diameter of the Earth is about 12 756 kilometres.
4. The diameter of the Moon is about 3480 kilometres.
5. We can compare the size of the Sun, the Earth and the Moon by using a basketball, a
glass marble and a sago.

a.    A basketball represents the Sun.
b.    A glass marble represents the Earth.
c.    A sago seed represents the Moon.

## Friday, 9 December 2011

### NATURAL SATELLITES, ASTEROIDS, METEOROIDS AND COMETS

NATURAL SATELLITE

1. A Natural Satellite is an object that moves around t planet.
2. For example, the Moon is Earth's only natural satellite. It moves
around the Earth.
3. All planets have their own natural satellites except for mercury
and venus
4. Jupiter has the most natural satellites of any planet.
5. Each natural satellite is much smaller than its planet.

ASTEROIDS
1. An asteroid is a rocky  object that moves around the Sun.
2. Asteroids have different shapes and sizes.
3. Their size can be up to several 100km across but they are usually
smaller than planets.
4. Most asteroids lie in a belt between the planets Mars and Jupiter.
5. This area is known as asteroids belt.

METEOROIDS
1. A meteoroid is a piece of stone or metal that floats and travels in
outer space.
2. There are millions of meteoroids in the Solar System. Most of
them are small.
3. Sometimes, a meteoroid may enter the Earth's atmosphere. When
this happens, the meteoroid will begin to heat up and start to
glow. This is called a meteor.
4. A meteor looks like a bright streak of light across the night sky.
5. It is also called a 'shooting star'.
6. most meteors burn up before they strike the surface of Earth.
7. A meteor that strikes the Earth surface is called a meteorite.
8. A meteorite can make a hole or a crater in the ground when it
hits it.
9.The Larger the meteorite, the bigger the crater.

Example of a crater and crater lake:

COMETS
1. A comet is lump of ice, frozen gases and dusts, which moves
around the Sun.
2. A comet does not give off light. But when it gets close enough to
the Sun, it will glow and form a long tail.
3. Its tail can sometimes be millions of kilometres along.
4. An example of a comet is Halley's Comet.
5. Halleys's Comet can be seen from Earth every 76 years.

Pictures of Halley's Comet:

## Thursday, 8 December 2011

### INFORMATION ABOUT THE PLANETS

Mercury
- The nearest planet to Sun.
- The temperature is too high to support life.

Venus
- The nearest planet to Earth.
- It is also the hottest planet in the solar system.

Earth
- Is the only planet that has living things.
- It has water, air and suitable temperature to support life.

Mars
- The red planet in the Solar System.
- It is covered with red dust.
- Almost all of its water is frozen.

Jupiter
- The largest planet in the solar system.

Saturn
- It is the second largest planet in the Solar System.
- It has bright rings around it.

Uranus
- It is the blue-green planet.
- Unlike the other planets, Uranus lies on its side as it goes round the Sun.

Neptune
- It is covered with a blue ocean of liquid methane.
- It is a blue planet.

Pluto
- Is the farthest planet from the Sun.
- It is also the smallest and coldest planets in the Solar system.

## Monday, 5 December 2011

### Planets in the Solar System

1. There are nine planets in the Solar System.
2. They are:
a. Mercury
b. Venus
c. Earth
d. Mars
e. Jupiter'
f.  Saturn
g. Uranus
h. Neptune
g. Pluto
How do you memorize the names of the planets.... here is the simple method to remember them.

MY VERY EXCELLENT MOTHER JUST SERVE US NICE PIZZA.

MY (MERCURY)
VERY (VENUS
EXCELLENT (EARTH)
MOTHER (MARS)
JUST (JUPITER)
SERVE (SATURN)
US (URANUS)
NICE (NEPTUNE)
PIZZA (PLUTO)

Pictures Of The Planets.

1. Mercury

2. Venus

3. Earth

4. Mars

5. Jupiter

6. Saturn

7. Uranus

8. Neptune

9. Pluto

OUR SOLAR SYSTEM

## Friday, 2 December 2011

### THE SUN

1. Sun is the centre of the solar system.

2. All the planets in the Solar System move around the Sun.

3. The Sun is the only star in the Solar System.

4. It gives off light and heat to the planets and other objects in the Solar System.

5. The Sun is also the biggest object in the Solar System.

## Wednesday, 30 November 2011

### The Solar System

1. The constituents of the solar system are:
a. The sun
b. Planets
c. Natural satellites
d. Asteroids
e. Meteoroids
f. Comets

ASTEROIDS

METEOROIDS

COMETS

NATURAL SATELLITE - THE MOON

VIDEO OF THE ASTEROIDS

VIDEO OF THE METEOROIDS

VIDEO OF THE COMETS

VIDEO OF THE NATURAL SATELLITE

## Tuesday, 29 November 2011

### 10 GREAT SCIENTISTS OF THE WORLD

LIST OF  GREAT SCIENTISTS OF THE WORLD.

1. Aristotle
Aristotle is the Great philosopher who had a vast knowledge in different disciplines. Studying different subject he contributed a lot in each of those subjects. He contributed in physics, poetry, zoology, logic, rhetoric, politics, government, ethics, and biology. This laurel Greek philosopher was born in Stagira in 384 BC. His father Nicomachus was a physician to the king Amyntas III of Macedon’s court and it is believed that their ancestors also held this position. Earlier in his life he was taught by his father at home and the medical knowledge he got from his father led him to investigate natural phenomenon later on. At the age of 18 he admitted in to the young Greek aristocracy run by Plato, another Great Greek philosopher, and Aristotle became the most favorite student of Plato.
 ARISTOTLE
As a scientist Aristotle made a good contribution which was very influential for the development of the science over the year. Mainly he spent most of his life researching the natural science and he did the researches without making reference to the Mathematics which was later proven as the weakness of his research by the scientists. His natural science oriented research includes botany, zoology, physics, astronomy, chemistry, and meteorology, geometry and many more. He was also the teacher of the Great warrior Alexander the Great. This great philosopher died n 322 BC.
2. Sir Isaac Newton
 SIR ISAAC NEWTON
Newton was also a man of versatile quality. He was physicist, mathematician, astronomer, alchemist, and natural philosopher in a row. His contribution in the development of science is a special one. He I best known for his explanation of Universal Gravitation and three laws of motion, and he was able to prove that the reason of both the motion of objects on Earth and of celestial bodies are controlled by the same Neutral laws. These findings could make a revolutionary change in the development of science. In mechanical science his great contribution was in optics. He could make a reflecting telescope. He also made some research on light and stars. His research on General binomial Theorem helped to be introduced today’s Calculus.
Newton was born to a farmer family but before three months of his birth his father died and then he was brought up to his maternal grandmother as her mother remarried. Newton could show his talent from his early life in The King’s School in Grantham and later he joined to the Cambridge University where he took his higher degrees.
3. Galileo Galilei
 Galileo Galilei
Galileo is considered as one of the greatest contributor to the development of Science. It is undoubtedly true that Galileo could first helped science to come out of the trend of Aristotle. He was physicist, astronomer, and philosopher and his best known contributions lie in the development of Telescope, first two laws of motion and also in Astronomy. He is also considered as the father of astronomy, father of physics and father of science.
He was born to a mathematician and musician father Vincenzo Galilei and his mother was Giulia Ammannati in Italy. He was taught form his very early life. He was the first scientist who followed the way of quantitative experiments in his research where the result was based on mathematics. He had to suffer a lot from the church for his theories.
4. Charles Robert Darwin
 Charles Robert Darwin
There can be debate about whether Charles Darwin (12 February 1809 – 19 April 1882) is the greatest scientist of all time but there is no doubt that he is the most controversial scientist of all time. On the Origin of Species by Means of Natural Selection (1859)- this is the book that has made Darwin immortal in the world history. This book has changed the course of science radically. It is perhaps an irony that Darwin studied theology and instead of becoming a clergy, he became naturalist.
Darwin went to different parts of the world and carried out extensive research. His theory about origin of human beings caused widespread controversy. Darwin stated that human beings have evolved through many changes and survival of the fittest was in important factor in the development of animal world. Darwin’s theory still causes passionate debate among his supporters and opponents.
5. Albert Einstein
 Albert Einstein
Einstein is the great scientist of the twentieth century and notable physicist of all time. It is told that he had learning disability in his childhood. He could not talk till he was three and could not read till he was eight. Despite such problems he later became the noble prize winner for his contribution to the Physics. His theory of relativity is considered as a revolutionary development of Physics. He got Noble Prize in Physics in 1921 for his explanation of the Photoelectric Effect and for his research in Theoretical physics.