Kids Questions & Answers

The most ambitious project since the Apollo missions to land a man on the moon, the International Space Station (ISS) is the next step in human exploration of the solar system. It is a joint venture between 16 nations, and the largest scientific cooperative programme in history. All power for the space station is generated by large arrays of solar …

To understand the inert pair effect, we need to understand the periodic table. There are some inherent properties of elements in the table. The inert pair effect is nothing but the extra stability concept. Generally p-block elements belonging to 3A, 4A, 5A, 6A, etc. show variable valency. For example, Sn element of group 4A shows +4 and +2 oxidation state. …

It is only when we stop to think that we realize the importance of land plants to us. We eat them in our cereals and vegetables, we make use of them for fibres like cotton, we depend on them for many drugs such as penicillin. But even when we eat meat, we must remember that the animals which produce the …

If you stood on the shore looking across the sea to the horizon (the line appearing to separate earth from sky), you might be able to see about two and half miles. But the higher you stood the further you would be able to see. As the earth is curved, the horizon would appear farther away with energy increase in …

The Great Rift Valley is the vast geographic depression that runs from the Jordan River Valley in Syria, South-western Asia to Mozambique in eastern Africa. The valley is approximately 6000 km, and its width varies from a few miles to more than one hundred miles. Its elevation varies from 1300 feet below sea level to 6000 feet above sea level. …

The golden angle separates the florets of a sunflower. It is an approximation, since three golden arcs add up to slightly more than enough to make a circle. One of the old leaves overlaps and is pushed out in a radial line. This makes space in the inner system for a new leaf to form. New leaves move into the …

God Particle is the nickname given to Higgs boson particle, so far a hypothetical subatomic particle believed to impart mass to the atom and, eventually, to all matter in the universe. The particle has come to the limelight in the wake of the ongoing Big Bang experiment in the Large Hadron Collider at Geneva, which expects to verify the very …

AK-47 stands for Russian Avtomat Kalashnikova 1947 (Automatic Kalashnikov 1947). Designed by Russian Mikhail Kalashnikov, it was the assault rifle used by most Eastern Bloc countries during the Cold War. The rifle was adopted and standardized in 1947, thus the name.

The Fog Index was developed by Robert Gunning, an American businessman, in 1952. It is a test designed to measure the readability of a sample of English writing. The resulting number is an indication of the number of years of formal education that a person requires in order to easily understand the text on the first reading. If a passage …

In physics, the fifth dimension is a hypothetical extra dimension beyond the usual three spatial and one-time dimensions. Some scientists have speculated that the graviton, a particle thought to carry the force of gravity, may leak into the fifth or higher dimensions, which would explain how gravity is significantly weaker than the other three fundamental forces. M-theory (the mother of …