MATHS FACTS AND FORMULA
PROFIT AND LOSS
WORK AND TIME
TIME, DISTANCE AND SPEED
IMPORTANT SYMBOLS AND TABLES
POSTULATES AND THEOREMS
WHAT IS COMPUTER
INTRODUCTION TO COMPUTERS
DEVELOPMENT OF A COMPUTER PROGRAM
INPUT OUTPUT DEVICES1
BASICS OF COMPUTERS
NETWORK PROTOCOL BASICS
NETWORKED AROUND US
HOW TO SHARE A NET CONNECTION
SETTING UP YOUR NETWORK
ADVANCED HOME NETWORKING
NETWORKING AND BEYOND
MEDIA ACCESS METHODS
VIRTUAL PRIVATE NETWORK
STORAGE AREA NETWORK
TYPES OF PRINTER
INPUT OUTPUT DEVICES
MS SHORTCUT KEYS
MAC OS X LION: FINDER KEYBOARD SHORTCUTS
KEBOARD SHORTCUTS FOR MS Office 2007
MAC OS X KEYBOARD SHORTCUTS
MEMORY OF THE COMPUTER
MOST POPULAR SOCIAL NETWORKING SITES
MOST POPULAR SEARCH ENGINES
SHORTCUT KEYS FOR MS OUTLOOK
SHORTCUT KEYS FOR MS POWER POINT
SHORTCUT KEYS FOR MS EXCEL
POPULAR SEARCH ENGINES
FACTS AND FORMULAE
QUANTITY AND UNIT
FACTS ABOUT YOUR BODY
STD IX AND X
BEING ALIVE–WHAT DOES IT MEAN
CELL AS A UNIT OF LIFE
CELLULAR MACRO MOLECULES
NATURAL RESOURCES AND THEIR UTILISATION
NATURE AND SCOPE OF BIOLOGY
ORGANISMS AND THEIR ENVIRONMENT
SOME FUNGAL DISEASES
WILDLIFE AND FOREST CONSERVATION
SKELETON SYSTEM - Q & A
MINERALS AND THEIR SIGNIFICANCE TO A HUMAN BODY
FACTS ABOUT OUR BODY
SOME BIOLOGY FACTS
FACTS ABOUT BLOOD
FACTS ABOUT BRAIN
RELATIVE ATOMIC MASSES
CLASSIFICATION AND NOMENCLATURE
STATES OR PHASES OF MATTER
ARTICLES AND DETERMINERS
SCIENTIFIC INSTRUMENTS AND WHAT THEY MEASURE
CONFUSING WORDS AND THEIR MEANINGS
PROVERB WITH B
PROVERB WITH C
PROVERB WITH D
PROVERB WITH E
PROVERB WITH F
PROVERB WITH G
PROVERB WITH H
PROVERB WITH I
PROVERB WITH J
PROVERB WITH K
PROVERB WITH L
PROVERB WITH M
PROVERB WITH N
PROVERB WITH O
PROVERB WITH P
PROVERB WITH R
PROVERB WITH S
PROVERB WITH T
PROVERB WITH U
PROVERB WITH V
PROVERB WITH W
PROVERB WITH Y
PROVERB WITH A
INSTRUMENTS AND WHAT THEY MEASURE
LIST OF PREPOSITION
LIST OF VERBS
LIST OF COMMON PRONOUNS
ONE WORD SUBSTITUTION
AIR AROUND US
CHANGES AROUND US
COMPONENTS OF FOOD
FIBER AND FABRICS
GETTING TO KNOW PLANTS
STORING MATERIALS INTO GROUPS
GARBAGE IN GARBAGE OUT
THE LIVING ORGANISMS AND THEIR SURROUNDINGS
MOTION AND MEASUREMENT OF DISTANCES
LIGHT, SHADOWS AND REFLECTIONS
ELECTRICITY AND CIRCUITS
SEPARATION OF SUBSTANCES
NUTRITIONS OF PLANTS
NUTRITION IN ANIMALS
FIBRE TO FABRIC
PHYSICAL AND CHEMICAL CHANGES
COAL AND PETROLEUM
WEATHER, CLIMATE AND ADAPTATIONS OF ANIMALS
WIND STORM AND CYCLONES
CROP PRODUCTION AND MANAGEMENT
MICROORGANISMS: FRIEND AND FOE
SYNTHETIC FIBERS AND PLASTICS
MATERIALS: METALS AND NON-METALS
COAL AND PETROLEUM I
COMBUSTION AND FLAME
CONSERVATION OF PLANTS AND ANIMALS
CELL - STRUCTURE AND FUNCTIONS
REPRODUCTION IN ANIMALS
REACHING THE AGE OF ADOLESCENCE
JUNIOR SCIENCE DICTIONARY
ANNIVERSARIES AND DAYS
IMPORTANT DATES IN INDIAN HISTORY
ANNIVERSARIES AND DAYS I
IMPORTANT INDIAN BATTLES
IMPORTANT SESSIONS OF CONGRESS
OLYMPIC GAMES DETAIL
TOP MEDAL WINNERS
FIRST IN INDIA
NATIONAL ANIMALS AND BIRDS
LONGEST HIGHEST LARGEST
FACTS ABOUT EARTH
SOUNDS MADE BY SOME OBJECTS
MCQ ON IMAGINARY LINES
MULTIPLE CHOICE QUESTIONS
MCQ ON IMAGINARY LINES - SET 2
HERITAGE SITES OF INDIA
STATES OF INDIA
LIST OF COUNTRIES AND THEIR CAPITALS
COUNTRY SPECIFIC DOMAINS
COUNTRIES OF ASIA
COUNTRIES OF AUSTRALIA & OCEANIA
COUNTRIES OF NORTH AMERICA
COUNTRIES OF AFRICA
COUNTRIES OD SOUTH AMERICA
INTERNATIONAL COUNTRY CALLING CODE
COUNTRIES OF EUROPE
COLOUR TERMS I
FIRST IN THE WORLD
PERSONS ASSOCIATED WITH ARTS AND THEATRE
LIST OF PRESIDENTS,PRIME MINISTER & CHIEF JUSTICES
DIFFERENT TYPE OF BANKING TRANSACTION CARDS
DISTRICTS IN INDIA
VEDIC / MENTAL MATHEMATICS
MENTAL ADDITION AND SUBTRACTION
DIVIDE AND CONQUER
DIVISIBILITY MATHS TRICKS
ELEMENTARY VEDIC MATHEMATICS
SQUARING A 2 DIGIT NUMBER
DOUBLE AND HALF METHOD
SQUARING A NUMBER ENDING IN 5
SQUARING A NUMBER ENDING IN 6
SQUARING A NUMBER ENDING IN 7
SQUARING A NUMBER ENDING IN 8
SQUARING A NUMBER ENDING IN 9
SQUARING A NUMBER IN THE RANGE OF 40-49
SQUARING A NUMBER IN THE RANGE OF 50-59
SQUARING A NUMBER IN THE RANGE OF 51-100
MULTIPLICATION BY 5
PHYSICAL GEOGRAPHY OF INDIA
LANGUAGES OF INDIA
RIGHT TO EQUALITY
RIGHT TO FREEDOM
RIGHT TO FREEDOM OF RELIGION
RIGHT AGAINST EXPLOITATION
SPORTS IN INDIA
SPORTS AND ASSOCIATED CUP & TROPHIES
FAMOUS SPORTS AND STADIA
INDIA IN OLYMPICS
INDIA IN COMMONWEALTH AND ASIAN GAMES
INDIA IN SAF GAMES
IMPORTANT SPORTS TERMINOLOGIES
NUMBER OF PLAYERS IN SPORTS AND PLAYING AREA
MAPS FOR SCHOOL ACTIVITY
FACTS ABOUT ANIMALS
EXTINCT ANIMAL SPECIES
AMAZING FACTS ABOUT ANIMALS
SOUNDS ANIMALS MAKE
ANIMALS AND THEIR YOUNG ONES
FACTS ABOUT COWS
ANIMAL, MALE, FEMALE, YOUNG ONE, NOUN AND SOUND
COMPETITIVE EXAMINATION SYLLABUS
SmartKid GK OLYMPIAD 12
YOU SHOULD KNOW
SOME AMAZING INFORMATION
UNDERSTAND YOUR BLOOD TEST
FUNNY BUT TRUE
ALL ABOUT COLOURS
ALL ABOUT RIVERS
FACTS ABOUT GENETICS
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SOME AMAZING INFORMATION
1. Like human being, ants stretch their bodies when they wake up. They also seem to YAWN in a human manner before they take up the tasks of the day.
The cuttlefish is one of the fastest adapting camouflage animals. It is able to
change its colour from red to brown in less than one second.
Birds perched on electrical energy cables are not electrocuted because it is easier
for the electrical energy to travel through the cables than the birds. The cables
have a much lower resistance than birds.
Some biodegradable plastics slowly decompose in sunlight into smaller molecules which can then be broken down naturally by microorganisms.
Optical fibres are modern tools of communication. They use the principle of light reflection. Light that enters one end of the fibres is reflected. This happen many times until it leaves the other end.
6. Group 18 elements consist of helium, neon, argon, krypton, xenon and radon. These elements are known as noble gases. These are monoatomic, insoluble in water, cannot conduct electricity and are poor conductors of heat.
7. Hydrogen is the lightest of all gases. But it burns easily and is therefore dangerous to use. Helium does not burn easily. So it is generally used to fill balloons.
Some plants like pitcher plant and the venus fly trap are adapted for growing in soils that are poor in nitrogen containing salts. These plants trap insects and digest them to obtain nitrogen containing substances.
9. Eco-friendly paper is being produced from elephant dung at the Pinnawela Elephant Orphanage in Sri Lanka. An Elephant generates about 180 kg. of waste a day.
Dancing is the language of the bees. It gives other bees information about the location of plants on which the worker bees hand found food. Bees can feed off flowers upto 3 km. from the hive.
The amount of carbon in the human body is enough to fill about 9,000 ‘lead’ pencils.
12. The electric eel is a living ‘battery’ that can deliver deadly electric shocks. It has special muscles that can generate upto 650 volts of electricity. This is strong enough to kill other fish, stun a person or knock a horse off its legs! The electric eel uses its higher voltage electricity to catch prey and for self defense. It can also produce low voltage electricity to find its way in munky water.
13. The evaporation process is similar to the boiling process as it also involves a change in the state of matter from liquid to gas. However, evaporation can take place at any temperature and only occurs to particles at the surface of a liquid.
When glass breaks, the cracks move at speeds of more than 4,500 km/h (3,000 miles).
15. The glow worm is a type of beetle. Only the female produces the greenish-yellow glow. This produces to attract a mate. The substance luciferin in its body causes the glow.
16. Each time lightning strikes, some Ozone gas is produced, thus strengthening the Ozone Layer in the Earth’s atmosphere.
17. The brain uses 20% of the body’s supply of oxygen and glucose. The brain cannot store oxygen and glucose, Therefore an insufficient supply of either one will cause adverse effects to the brain.
18. Hardness of mineral can be measured by using the Moh’s scale. It is created by German mineralogist Friedrich Moh’s. On the Moh’s scale of hardness, diamond is ranked 10 while talc is I.
Most of our rubbish is burnt at a place called the incineration plant. After the rubbish is burnt, a magnet separates materials made of iron and steel from the ashes. The iron and steel are then sent for recycling.
20. Scientists have discovered the Solar System’s 10
planet, more than three billion kilometers further away from the Sun than Pluto, named Sedna. The object was spotted by the recently launched high-powered Spitzer Space Telescope.
21. In the 19
century, rabbits were imported into Australia. The rabbit population increased greatly because there were no natural predators. The rabbits became pests and competed with animals for food. Finally a type of virus was introduced to kill the rabbits until its population was under control.
22. The sound a cow makes is low-pitched. The squeak of a mouse is high pitched. Some sounds are so high-pitched that the human ear cannot detect them. However, animals such as dolphins, bats and dogs can hear these sounds.
23. If the intestines of our body were not coiled we would have had to be nearly 33 feet tall. Now you know why they are coiled inside our body.
24. Sulphur dioxide is used in preserving bottled food like jam and tomato ketchup. This gas has two effects on food. It prevents a moulds from growing in alcoholic drinks and fruit juices, and dried fruits from turning brown.
25. Have you experienced your hair standing up momentarily when you go close to a television or computer screen that is switched on?
Your hair also stands up in the some way when a plastic sheet is placed over your head or near your arm. These effects are caused by static charges(“static” means “not moving”).
27. The first true parachute jump was made from a balloon in 1797, when Andre-Jacques Garnerin safely descended 680 m. beneath an enormous umbrella-shaped canopy.
28. The first rocket was launched by Chinese scientists in the year 1200. This rocket used gunpowder. However, the first liquid-propelled rocket was launched in 1926, by an American, Robbert Goddard. This type of rocket paved the way for space travel.
29. The mass of our entire atmosphere is estimated to be some 5.5 quadrillion tons(55 followed by 14 zeroes).
30. In an adult, the skin makes up about 7% of the total body weight. It covers an area of about 175 m
(as big as a dining table).
31. A bat’s navigation system is similar to the sonar system. It sends out pulses of ultrasonic waves. These waves bounces off insect in bats path and returns to bat.
32. The mouth is a suitable place for bacteria to grow and multiply in the crevices between teeth because it is moist, dark, of the correct temperature (37
C) and food particles are present. This may result in tooth decay and gingivitis.
Neutrons and protons are collectively called nucleons because neutrons and protonsoccupy the nucleus.
34. Michael Faraday (1791 – 1867) was the pioneer scientist in the field of electrolysis. He worked on experiments which involved effects of electricity and developed two important laws called Faraday’s Laws of Electrolysis.
35. Lord Kelvin invented a scale of temperature based on the fact that it is impossible to get below a temperature of about -273
C. Scientists now use this scale, in which these temperature is zero and the boiling point of water is 273.15 Kelvin. One Kelvin is equal to I
36. Magnets have to be stored carefully or they will get weaker as time goes by. Pieces of iron can be placed across the ends of a pair of magnets to make them last longer. These are called keepers.
Lasers produce beams of light that are strong enough to cut through metal. Doctors use lasers to perform laser eye surgery and destroy cancer cells.
38. The colour images that you see on a television screen are due to the light emitted by three types of phosphor coatings. These emit red, blue and green light when struck by electrons coming from the electron gun at the back of the television.
39. James Watt (1736-1819)- The unit of power is named after a British engineer James Watt., in honour of his contribution to the development of the steam engine.
40. In 1819, Hans Christian Oersted (1777-1851), a Danish physicist, accidentally discovered that an electric current change the direction of a nearby compass needle.The deflection of the needle was caused by the magnetic field around the wire that carried the current.
41. Sir Isaac Newton, an English scientist, was the first person to separate sunlight into a spectrum of seven colours.
42. Dancing is the language of the bees. It gives other bees information about the location of plants on which the worker bees hand found food. Bees can feed off flowers upto 3 km. from the hive.
43. Scientists have classified viruses as non-living things because viruses are not cells. Viruses do not use energy to grow or to respond to their surroundings. They also cannot make food, take in food or produce wastes.
44. Visible light is only a very small portion of full electromagnetic spectrum and it is used to observe things. Non-visible parts of the spectrum are commonly used in communication applications.
45. 70% of our body weight is made up of water, Humans lose about 1.5 litres of water perday through urine, foces, exhaled air and sweat. A loss of 5% of the body’s total volume of water can lead to unconsciousness.
46. If a person weights himself on the Moon, his weight would be only one-sixth of what it is on Earth. His mass, however, remains the same whether he is on the Earth or the Moon.
47. We can use X-rays to see bones and other parts inside our bodies. This is because x- rays can pass through most solid materials. X-rays are also used by airport security staff to see the contents inside people’s luggage.
48. Yogurt contains useful bacteria. The bacteria are known as probiotics. Most scientists believe that probiotics can enhance the immune system of the human body and prevent constipation.
49. Alexander Flemming (1881-1955), in one of his investigations, found that a certain Mould prevented the growth of bacteria. This discovery led to the development of antibiotics.
50. Brownian movement is the random movement of particles in liquids or gases which can be observed when the particles collide with each other. This concept is based on the experiment carried out by a botanist named Robert Brown (1827). He observed the movement of pollen suspended in water using a microscope.
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