WHY IS THE SUN HOT?


The sun is hot because it is undergoing a continuous thermonuclear explosion. Sun is called because of a process called "nuclear fusion". Hydrogen fuses to form helium. The fusion releases energy, heat and light.   

WHY IS THE MOON COLD?


Moon is cold because the part of the moon we see never faces the sun, but the other side which forever faces the sun is hot. Sun and other stars create thermonuclear fusion, which releases enormous amounts of energy - heat, light.

Moon is made out of rocks similar to that on Earth and gets all the light and heat from the sun.


HOW DOES ELECTRICITY GET TO OUR 

HOMES?

Electricity plants convert the energy from the raw materials of the Earth into electrical current. This is done with the help of huge generators, which are driven by water, steam, or wind. Electricity is then distributed at a high voltage through cables laid in the ground or through overhead lines, on which often birds it on swarms. Substations then produce electricity, which finally comes out of the sockets in our homes: 230 volts alternating current. Fuses protect us and our property from damages.

TRAVEL

MELMUDI TREK 10.03.2013-11.03.2013

THEKKADY TRIP 26.01.2013

BIOLOGY

01.02.2013

DIGESTIVE SYSTEM

The digestive system consists of mouth, oesophagus,stomach,duodenum,small intestine, large intestine and anus.

The food enters the mouth and mixes with salaiva it then goes into the oesophagus and moves down to the stomach slowly. This slow movement of food through the oesophagus to stomach is called PERISTALSIS. 

Once the food reaches the stomach hydrochloric acid and digestive enzymes convert the food into a semi solid CHYME.

The chyme passes through the duodenum and enters the small intestine where nutrients are absorbed from the chyme. The chyme then passes through the large intestine where further absorption takes place. The waste food is excreted through the anus.













 ENDOCRINE GLANDS



Glands are so important without them we cannot eat,sleep and we can't pee.
There are 9 Glands in the Human body.

Here are the types of glands in this picture.

And Glands are important to produce Hormones. It controls the Human Organs, Like sleep,Breathe,cry.

Types of glands in the BRAIN
1.pineal gland 
2.Pituitary gland
3.Hypothalamus
                                  NECK
1.Thyroid gland
2.Parathyroid Gland

                                        NEAR HEART
1.Thymus


                                            OTHER GLANDS

1.Adrenal Glands
2.Pancreas
3.Ovary is for female
4.Testes is for male.



21/3/2013

SKELETAL SYSTEM



We have bones because it will protect our muscles and skin.
we have seventeen bone in our body. A maxilla is a upper jaw bone.

SKULL

1.Skull bone

2.maxilla

3. mandible

LEFT SHOULDER

1. shoulder joint

2. clavicle

3. scapula

4. sternum

5. Ribs

6. vertebrae

7. pelvis


HIP 

1. pelvis

2. sacrum (triangular bone)


WRIST

1. wrist joint


KNEE

1. patella

2. Knee joint

RIGHT SHOULDER

1. Shoulder joint

2. humerus

3. elbow joint

4. radius

5. ulna


FINGERS

1. Carpal

2. metacarpal

3. phalanges


THIGH

1. Femur


LEG BONE

1. Tarsal

2. metatarsal

3. toe phalanges

GENERAL KNOWLEDGE


30.01.2013
NELSON MANDELA


Nelson Mandela was the President of South Africa.He was an anti APARTHEID (It is a british policy which did not allow black and white people to live side by side.) activist.He was imprisoned by the British for 27 years,in a prison in Robben Island.











01.02.2013
POMPEII

 Pompeii is a Roman City.The city was burried in AD 79 because of the eruption of a volcanic mountain called Mount Vesuvius. Pompeii was partially excavated in 1748. The city is located near modern day City of Naples.

There are two types of volcanoes Active volcanoes and Dormant volcanoes. There are around 1,500 active volcanoes in the world today.

7.02.2013

TREES AND PLANTS AROUND MY HOUSE

african flame

millingtonia

african flame

nerium oleander

pongamia

                                               


         7/3/2013

        VENICE
 Venice is in Italy.
Venice has canals instead of roads and boats instead of cars.
THE GRAND CANAL

The Grand Canal is Venice's Main street.

Venice has over 400 bridges more than any other city in the world. 

GONDOLIERS


Those who rowing boat steered with a single oar is a Gondolier. And if you want a relaxed Canal Journey Then you should travel by gondolas(water taxis)


RIALTO BRIDGE
.

The Rialto Bridge is the oldest and most famous of the three bridges spanning the grand Canal.