151 Amazing Questions and their Answers

Human body-parts do not fall asleep as the prescribed notion but they tend to lose the sensation of touch or pressure due to the compression of the nerves, which takes the stimulus from the body to the brain. Mostly, it is because of the position of our limb that defines the sleepiness of our body-part. […]

Leaves change colours when the season changes. In the fall or winter, the leave pigment responsible for the green colour, chlorophyll is not produced in leaves. Here, the secondary pigments act and give their colours to leaves. These include carotene, which gives bright orange colour to carrots. Anthrocyanin in red and wine-coloured leaves gives colour

Helium balloons float in water because of the force called buoyancy, which is the upward force exerted by water that resists the weight immersed in the liquid. A balloon with helium gas is lighter than a balloon filled with air because a litre of air weighs 1.25 grams but a litre of helium gas weighs

Flowers are liked by all because of their beautiful eye-catching colours. Such colours in flowers are the result of reflected light from the pigments, called anthocvanins in the plant, which are based upon in the hereditary genome of the plant. Apart from such pigments, there are also other reasons which give  flowers different colours. Such

Children lose their milk teeth as they grow up because their gums and jaw size increase with age. The loosening of primary teeth occurs at the age of 6 to 7 years and because the jaw or jaw muscles cannot take in permanent teeth, the root of the milk teeth is reabsorbed. The first teeth

A bird’s beak, which is also at times called as the bill, is more like a jaw of the bird. It helps the bird to chew food. While animals have heavy jawbones and teeth birds have light beaks so that they may fly easily. The beak of the bird also helps it to tear things

There are many studies done on cancer and now curable steps are invented for cancer but still cancer is found out to be dangerous because it is not that easy to find out the symptoms of cancer at an early stage. In early stages, only if cancer is detected then doctors can be able to

The type of reproduction in plants is usually occurred with the help of the pollination process which mainly occurs in flowers. Pollination is a technique in which the pollen is transferred from the male to the female part of flowers. One flower can only have a male part or a female part and thus the

A bubble is a thin film of soapy water. Most of the bubbles that you see are filled with air, but you can make a bubble using other gases, such as carbon dioxide. The film that makes the bubble has three layers. A thin layer of water is sandwiched between two layers of soap molecules.

Whenever we push anything upward, it again falls back to earth; all is due to the gravitational force of the earth. Gravitational attraction is actually the attraction between two objects. This force is directly proportional to the product of their masses and is inversely proportional to distance between their distances. Gravitational force of the earth

One of Earth’s original recyclers, earthworms are our planet’s greatest composters. They help keep the soil fertile so plants can grow. When they burrow into the ground and turn up soil, they expose it to oxygen. As they dig deep, they eat decomposing organic matter, like leaves and roots, and extract the nutrients from them.

A turtle has a shell because it provides it with protection. Almost certainly the original and most widespread role of the turtle shell is protection from predators, something that’s especially useful given the slow, careful foraging styles of most turtles. Different types of turtles have different types of shells which all provide benefits in their

Crocodiles, the largest of living reptiles, are found throughout the tropical and subtropical regions of the world. Crocodiles are found on all the continents of the world, except for Europe and Antarctica. The geographical range of this reptile species spans across North America, South America, Asia, Africa and Australia. Their natural habitat includes freshwater sources

Spiders have two fangs, one cephalothorax (joined head and middle), one abdomen, and eight legs. But how many eyes do these arachnids have? Most spiders, but definitely not all spiders, have eight eyes, and the way those eyes are arranged can often help scientists work out what kind of spider it is. Of course, that’s

In general, we hear a popping sound when we crack our knuckles and there is a scientific reason behind this. The sound in the knuckles is caused when we deliberately or undeli-berately extend the finger joint to its maximum range. The joints are enclosed by a lubricating fluid and when we extend the knuckles the