Thursday, October 16, 2014

what is a solar eclipse and why does it occur

how does a solar eclipse occur


A solar eclipse is a type of eclipse that occurs when the Moon passes between the Sun and Earth,  when the moon passes in front of the sun and blocks it completely.

Sunday, October 5, 2014

when were the pyramids built

where are the pyramids

The Egyptian pyramids are ancient pyramid-shaped masonry structures located in Egypt.

There are 138 pyramids discovered in Egypt as of 2008. Most were built as tombs for the country's Pharaohs and their consorts during the Old and Middle Kingdom periods.


The earliest known Egyptian pyramids are found at Saqqara, northwest of Memphis. The earliest among these is the Pyramid of Djoser (constructed 2630 BC–2611 BC) which was built during the third dynasty. This pyramid and its surrounding complex were designed by the architect Imhotep, and are generally considered to be the world's oldest monumental structures constructed of dressed masonry. The estimate of the number of workers to build the pyramids range from a few thousand, twenty thousand, and up to 100,000

where is great wall of china

china

The Great Wall of China is a series of fortifications made of stone, brick, tamped earth, wood, and other materials, generally built along an east-to-west line across the historical northern borders of China in part to protect the Chinese Empire or its prototypical states against intrusions by various nomadic groups or military incursions by various warlike peoples or forces. Several walls were being built as early as the 7th century BC; these, later joined together and made bigger and stronger, are now collectively referred to as the Great Wall.

why do mountains affect weather

the tip of a mountain


 Mountains:

There are two sides: wayward and leeward.
Wayward: Whenever it is raining, the wayward side gets the rain so there is good soil most of the time. But as the cloud goes up the mountain, it keeps raining until soon there is no more water in the cloud.
Leeward: Now the cloud is at the other side of the mountain. There is no more precipitation so the leeward side of the mountain gets no rain so the flat ground on this side of the mountain is dry and humid.

Friday, October 3, 2014

what is the new planet called

Kepler-186f planet


Kepler-186f

The new found planet, called KEPLER-186f, was first spotted by NASA'S KEPLER space telescope and circles a dim red dwarf star about 490 light-years from Earth. 

how far is the planet mars away from earth

red planet mars


The average distance between the Earth and Mars is 225 million km

How far is the moon from the earth

the distance from earth to moon


The Moon is only 363,104 km away from earth, and the Circumference is 10,917 km

Thursday, October 2, 2014

WHY DO TREES USE CARBON DIOXIDE

THE PROCESS OF PHOTOSYNTHESIS

Trees carry out process of respiration in which CO2 is utilized. That is, they absorb Carbon Dioxide the process called Photosynthesis. 
Photosynthesis is the conversion of light energy into chemical energy by living organisms. The material are Carbon Dioxide (CO2) and water, the energy source is sunlight, and the end-products include glucose and oxygen. 

why do trees grow upwards

trees need the sunlight

Trees grow up because they are trying to get closer to the sun, in order to fuel  the process of photosynthesis. 

why do trees lose their leaves

trees during autumn

Trees lose their leaves seasonally a especially during Autumn, and to the shedding of other plant structures such as petals after flowering or fruit when ripe. 

Sunday, September 28, 2014

material used to make cement

limestones and shale

Gypsum is also used to make the cement set more slowly, The main ones are Limestone and Shale. 


what is the raw material used to make petrol


manufacturing of petrol


Petroleum, from Medieval Latin petroleum, from Latin petra rocklatin: oleum oil is a naturally occurring, yellow-to-black liquid found in geologic formations beneath the Earth's surface, which is commonly refined into various types of fuels. It consists of hydrocarbons of various molecular weights and other liquid organic compounds. The name petroleum covers both naturally occurring unprocessed crude oil and petroleum products that are made up of refined crude oil. Afossil fuel, petroleum is formed when large quantities of dead organisms, usually zooplankton and algae, are buried underneath sedimentary rock and subjected intense heat and pressure.



what is the raw material used to make plastic

the making of plastic

scientific plastic molecular

A plastic material is any of a wide rang of synthetic or semi-synthetic organic solids that are moldable plastics are typically organic polymers of high molecular mass, but they often contain other substances, The chemical composition of plastics is different depending on what type of plastic your dealing with But for the most part the raw material  of plastic is hydrocarbons found naturally in oil. 

Saturday, September 27, 2014

greatest scientist of all time

isaac newton

SIR ISAAC NEWTON 

Sir Isaac Newton Born  25 December 1642 – 20 March 1726 was an English physicist and mathematician  who is widely recognised as one of the most influential scientists of all time and as a key figure in the scientific revolution. His book PhilosophiƦ Naturalis Principia Mathematica,  first published in 1687, laid the foundations for classical mechanics. Newton also made seminal contributions to optics and shares credit with Gottfried Leibniz for the invention of calculus.


Newton's Principia formulated the laws of motion and universal gravitation, which dominated scientists' view of the physical universe for the next three centuries. By deriving Kepler's laws of planetary motion from his mathematical description of gravity, and then using the same principles to account for the trajectories of comets, the tides, the precession of the equinoxes, and other phenomena, Newton removed the last doubts about the validity of the heliocentric model of the cosmos. This work also demonstrated that the motion of objects on Earth and of celestial bodies could be described by the same principles. His prediction that the Earth should be shaped as an oblate spheroid was later vindicated by the measurements of Maupertuis, La Condamine, and others, which helped convince most Continental European scientists of the superiority of Newtonian mechanics over the earlier system of Descartes.

Friday, September 26, 2014

what is the most beautiful flower in the whole world

the moon flower


Moon flowers are called moon flowers because they bloom in moonlight. These are beautiful pink or white flowers. The flowers quickly open at night and last the entire night. They close when the sunlight touches their petals. The plant has a height of up to 13 feet. The propagation is by seed. The flower should by planted when the moon is new or increasing. 

Tuesday, September 23, 2014

where is the biggest zoo in the world

the real king of the jungle


The Berlin Zoological Garden was opened in 1844 and is the oldest zoo in Germany. Located in Berlin’s Tiergarten, the zoo is home to 1,500 species and 19,500 total animals. At this number, the Berlin Zoological Garden holds the most comprehensive collection of species in the world. The zoo is considered to be the most visited zoo in Europe and among one of the most popular zoos worldwide

where is the biggest tree in the world

the biggest tree in the usa

The General Sherman is the biggest tree in the world, The tree located in the Giant Forest of Sequoia National park in Tulare County, in the U.S. state of California. By volume, it is the largest known living single stem tree on earth  

Monday, September 22, 2014

What is the largest lake in the world

the caspian sea


The Caspian Sea is often regarded as the world's largest lake.

what is the largest country in Africa

algeria is the largest country in africa


Algeria is Africa's largest country by area, and Nigeria is the largest by population. Africa, particularly central Eastern Africa.

what is the longest bridge in the world

Danyang Kunshan Grand Bridge

The Danyang–Kunshan Grand Bridge is the world's longest bridge. It is a 164.8-kilometre bridge

The bridge is located on the rail line between Shanghai and Nanjing in East China’s Jiangsu province

what is the longest animal in the world?

longest worm

The Lineus Longissimus is one of the longest known animals, with specimens up to 55 metres) long 

They may grow as long as 55 metres), which would make it the longest animal in the world. The body is brown with lighter (longitudinal) stripes. Its mucus contains a relatively strong neurotoxin which it uses as a defence against predators. 

Why is the Nile river unusual?

the nile river flows from south to north

It's unusual because it is one of the few major rivers that flow from south to north.

Tuesday, April 1, 2014

how deep is the indian ocean

beauty of the ocean


The Indian Ocean's average depth is 12,990 feet (3,960 metres)

The Indian Ocean is the third largest of the world's oceanic divisions, covering approximately 20% of the water on the Earth's surface.It is bounded by Asia—including India, after which the ocean is named on the north, on the west by Africa, on the east by Australia, and on the south by the Southern Ocean.