Home »
Posts tagged "Paragraph Writing" (Page 55)
How does the Sun power a Racing Car? A racing car as you know has a petrol-driven engine. The petrol is a fossil fuel ultimately depending on the Sun’s energy, as we shall see. On a sunny day you can feel the Sun’s rays warming your face. The Sun is applying energy in the form of heat. Solid as it may look, the Sun is completely made up of gas, so...
Continue reading »
September 13, 2017 evirtualguru_ajaygour10th Class, 9th Class, Class 11, Class 12, General Knowledge, Paragraph WritingNo Comment
How do we know what the bottoms of oceans are like? Over two-thirds of the Earth’s surface is covered with water. Most of this is very deep and we call it ocean. People cannot go down very far because the pressure of the water on them increases the deeper they go. Deep-sea divers wear protective clothing to stop their bodies being crushed. However, people have gone down to great depths using...
Continue reading »
September 13, 2017 evirtualguru_ajaygour10th Class, 9th Class, Class 11, Class 12, General Knowledge, Paragraph WritingNo Comment
Why do we build dams? Man-made dams are large walls built across rivers or lakes so that the water builds up on one side of them. The water can be let out of the dams if required. Dams are useful to us in many ways. We need water to drink and to grow our food but in many parts of the world, at different times, there is sometimes too much water...
Continue reading »
September 13, 2017 evirtualguru_ajaygour10th Class, 9th Class, Class 11, Class 12, General Knowledge, Paragraph Writing1 Comment
Can water climb? Water usually flows downwards, pulled by the force of gravity. However, in certain circumstances, it can move upwards or climb! If you place a thick and a thin plastic straw in a beaker of coloured Water, the water will rise up the straws above the level of the water in the beaker. The water will rise further up the thin straw than the thick straw. The ability...
Continue reading »
September 13, 2017 evirtualguru_ajaygour10th Class, 9th Class, Class 11, Class 12, General Knowledge, Paragraph WritingNo Comment
Who invented the game of tennis? A Welshman, Major Walter Clopton Wingfield devised the game of tennis in 1873. However he based his ideas on a much earlier form of court tennis whose origins date from ancient Egyptian-Arabian fertility rites. The game was played intermittently up until the thirteenth century, from which time it is known that it became a popular pastime in the parks and chateaux of France. It...
Continue reading »
September 12, 2017 evirtualguru_ajaygour10th Class, 9th Class, Class 11, Class 12, General KnowledgeNo Comment
How is a cuttlefish like a jet plane? The cuttlefish moves underwater and the jet plane moves through the air, but both use the same method — jet propulsion. The cuttlefish has a bag or cavity into which it lets water. When it is full, muscles in the cavity stop any more water coming in and push the water out of an opening in the back of the cuttlefish. It...
Continue reading »
September 12, 2017 evirtualguru_ajaygour10th Class, 9th Class, Class 11, Class 12, General KnowledgeNo Comment
How do waves erode cliffs? The wind blowing over sea produces waves. These waves pound all around our coastline. They can wear, or erode even the hard rocks in cliffs, but this takes a very long time. There are two main ways in which this erosion occurs. The cliffs are not smooth but have lots of holes and crevices in them. When the waves pound against the cliffs, the air...
Continue reading »
September 12, 2017 evirtualguru_ajaygour10th Class, 9th Class, Class 11, Class 12, General KnowledgeNo Comment
How does the Moon cause tides? The Earth is attracted lo every in space by the force of gravity. This is a force between objects which depends on how heavy they are and how far apart they are. The force is greater the heavier and closer together the objects are. The Moon is our closest neighbour. It orbits around the Earth at an average distance of 384,400 km and 238,7o0 km...
Continue reading »
September 12, 2017 evirtualguru_ajaygour10th Class, 9th Class, Class 11, Class 12, General KnowledgeNo Comment
Page 55 of 57« Prev
1
…
52
53
54
55
56
57
Next »