Tag Archives: United Nations Days Educational Questions for Kids

What is the cause of the earth’s magnetic field?

What is the cause of the earth’s magnetic field?

Originally, it was thought that the centre of the earth has magnetized iron deposits, which caused it to act like a huge permanent bar magnet. However, the theory failed to explain how the magnetic field had sustained itself for long, because even if there was magnetized iron in the core earlier, the core of the earth is so hot that …

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What was the first life on the Earth?

What was the first life on the Earth?

Until quite recently it was thought that there were no abundant life forms on this planet until about 600 million years ago. When we remember that the Earth itself is at least 4500 million years old, it does seem to have taken a very long time before any animals or plants appeared. Then, geologically speaking, they must have developed very …

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Why are Cancer and AIDS so feared?

Why are cancer and AIDS so feared?

Cancer and AIDS are two of the most dreaded diseases. They are not highly infectious diseases like the plagues of centuries past, so that people who are with sufferers are not necessarily at risk. But they can be difficult to treat, and there is little hope for patients who have either disease in its advanced stages. The two diseases may …

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