Science magazine for children: Packed with science stories, science facts, science features, and other science learning resources for children. Discover the known, the unknown, and little-known facts in our science articles. Learn the how and why of everyday things and explore rare and exotic living species.
358 items in this section. Displaying page 3 of 36
What is Water Harvesting?
Come summer and the entire nation seems to have just one word on its lips – water. Year 2000 saw one of the worst summers recorded in the history of India. The drought in the state of Gujarat and Rajasthan was the worst in decades. Fresh water, they say is a scarce resource. Is it? During the monsoons every year, we allow huge amounts of fresh water to run off our roads and pavements into the drains where it mixes with the sewage and heads straight for the rivers where we dump waste....
How did Christianity Come to India?
Would you doubt my word if I say that Doubting Thomas, one of the Apostles of Christ visited India and established Christianity? Don’t. For its true. Among Christ’s 12 apostles, Thomas Didaemus or Doubting Thomas, along with Peter and Paul were pre-eminent. Thomas Didaemus was called Doubting Thomas because he doubted Christ’s word that on the third day after his crucifixion, Christ would rise again. There are many schools of thought as to how Christianity spread in India....
Why do Clocks Run Clockwise?
“Time to get dressed!” cries a harried Mama as she tries to pack the bag, straighten the tie, pack lunch, tie shoelaces as at the same time she pushes children dragging their heels towards the bus stop. Oh? Is it already “Time for school?” later still its “time for dinner” or “time for bed!” Old Father Time can be quite an interfering busybody and there really is nothing we can do. Most of us spend a greater part of our time and lives trying to beat exactly this – time!...
Why can’t the Sun melt Snow?
There are some things in nature that have a great capacity to toss back or reflect a great deal of the sun’s light that falls on them. One of them is snow. Newly formed snow reflects about 90 per cent of the sunlight that falls upon it. This means that the sun is powerless to melt clean snow. And when snow does melt, it is not because of the sunlight. Snow does not melt on a spring day because of the sun’s heat....
Why Do We Have Wrinkly Fingers After Swimming?
You’ve been playing in the pool for almost an hour now, practicing your best underwater somersaults. Now it’s time to get out, and as you look at your hands, it’s . . . it’s . . . it’s the attack of the wrinkly fingered monster! Don’t get frightened or run for cover under your towel yet. After spending lots of time in the water, it’s totally normal for fingers (and sometimes toes) to wrinkle. Why Do We Have Wrinkly Fingers After Swimming?...
Why are Human Voices Different?
Imagine a scenario. A criminal is being tried in court. He denies saying something. The prosecution brings a recording, saying they have his confession on tape. As the accused vigorously denies the voice being his, an expert shows just why the voice could be no one else’s. A fictional scene? Perhaps, but it is a reality that no two persons in the world have exactly the same voices. Do you know why this is so?...
King of Fruits – History of Mango!
It is a tree that is green at all times of the year. But it bears fruit in the height of summer. The hotter it is, the sweeter it becomes. And, it seems we humans cannot have enough of this juicy, fleshy fruit, for there are almost 1000 varieties of this king of fruits around the world to please our tongues and eyes. It could be round, almost like a ball, or it could be oval in shape, kidney shaped or just long and thin....
How did the Pineapple get its Name?
What prompted people to call banana a banana and a pineapple a pineapple and not something else? Actually there is a reason behind the names given to each and every thing; be it a fruit, vegetable, an animal or inanimate objects like stars, planets, etc. However, sometimes the names are misleading, Take the example of pineapple: no it doesn’t come from a pine tree, nor is it an apple. When you look at a pineapple you may think you are looking at one fruit....
Why is the Dead Sea dead?
The Dead Sea is indeed a very scary name for a lake. It is called so because nothing lives in it. There are no sea weeds or plants, no fish either. This is because the Dead Sea is nearly six times as salty as the ocean. It also contains many other dissolved minerals, including magnesium chloride, calcium chloride and potassium chloride in large quantities. Whereas in fresh water, only minute quantities of these minerals are found....
What is the Mystery of Dracula?
As bats flap through the musty castle, a coffin lid creaks open and an ashy white hand gropes for the cover. The lid slides off and a caped figure rises in the gloom – Dracula is on the prowl! Vampires have enthralled generations of readers and moviegoers; and the most popular ‘vampire’ is the fearsome Count Dracula of Transylvania. Of course, these blood-sucking monsters do not exist and are merely the figment of our imagination....