Anil fell down while going to school, got knee injury, started bleeding. After sometime he was wondered by seeing blood clot. Why did blood clot?

While learning to ride a bicycle Boojho lost his balance and fell. He got bruises on his knees and it started bleeding. However, the bleeding stopped after some time. (a) Why did the bleeding stop? (b) What would be the colour of the wounded area and why?

Four persons went on an excursion on a hill top where temperature was quite low One of them fell sick. The other persons put a blanket on him, collect the pieces of dry wood and ignited fire in his vicinity. After sometime the sick person felt better. Read the above passage and answer the following questions: (i) What are the type of rays coming from fire? (ii) Why did the sick person feel better while seating near the fine? (iii) What basic values do you learn from this study?

Both the kidneys of Ravi (28 years) were not functioning and he was undergoing dialysis. He was admitted to a hospital with renal failure. His mother Suganthi (47 years) was willing to donate one of her kidneys to her son after she was given counseling. Their blood groups were matching and later approval was obtained from transplant committee and technical committee. Operation was performed for 5 hrs. He was administered with immunosuppressive drugs and anti inflammatory drugs. He recovered from the operation and returned home. 1. Name the disease Ravi was suffering from. 2. What relation is the donor of the kidney 3. Name the type of matching done to perform the transplant. 4. Why approval has to be got from transplant committee and technical committee? 5. What do you think about Suganthi donating her kidney?

While going on a morning walk a person fell down and his/her knee got injured resulting in redness, pain, swelling and production of heat. He has fever also. What is the possible response?

It was a full-moon's night. Bright moonlight flooded the road. I was walking slowly. Suddenly, I heard a whistling sound. At first, I thought it was another late evening stroller like me. The sound was loud and cheerful. Suddenly, a boy on a bicycle sped past me. I could not see his face. After a few minutes he was back again. This time he stopped a few feet away from me and gave me a smile. He looked like a slim boy of fourteen. He wore a school blazer, a cap and a scarf. His eyes were bright and cool like moonlight. "You don't have a bell on your bicycle," I said. He said nothing. I put out my hand but he did not take it. Then quite suddenly he sped past again. The next day l learnt that, that whistling boy was a ghost! Why could the narrator not see the face of the boy?

What would happen to you frll along a straight tunnel through the center of Earth. The problem has been analyzed ever since Galileo considered it. However, the most enchanting version is the one about Alice where she falls down the rabbit hole in ''Alice in Wonderland'', which Lewis CArroll wrote to entrain the (real) Alice Liddell when she was a child. Here is a passage from Alice : Either the well was very deep, or she fell very slowly, for she had plenty of time as he went down to look about her, and to wonder what was going to happen next. First, she tried to look down and make out what she was coming to, but it was too dark to see anything : then she looked at the sides of the well, and noticed that they were filled to see anything : then she looked at the sides of the well, and noticed that they were filled with cupborad and look - shelves , here and there she saw maps and pictures hung upon pegs. She took down a jar from one of the shelves as the passed : it was labeled ''ORANGE MARMALADE'', but to her great disappointment it was empty : she did not like to drop the jar, for fear of killing somebody underneath, so managed to put it into one of the cupboards as she fell past it ..... Down, down, down. Would the fall never come to end ? ''I wounder how many miles I' ve fallen by this time ?'' she said aloud. ''I must be getting somehere near the centre of the earth.'' If Alice did fall down a tunel to the center of the Earth, would she drift slowly enough to see or grab things along the way ? Would the gravitational force that pulled her downward wane during the descent ? These questions were hot topice in Carroll's time, but Gallileo had the correct explanation long before then. If Alice reached her wonderland 21 minutes after the fall, (neglecting air resistance) the wouderland was

Question based on paragraph : A boy pushed his toy car on a table . The car moved ahead and stopped after travelling a certain distance . But when he kept on pushing his car , the car started moving with a uniform velocity . The boy later decided to do some adventurous activity while playing with his car , so he launched his toy car from a platform to a bucket filled with water as soon as the car landed inside the bucket , the water from the bucket splashed out and the boy enjoyed his new game .: Why did the toy car stop after travelling a certain distance ?