A chemical reaction that occurs between wood, fuel and oxygen when the fuel used reaches the ignition point is called fire. Ignition point of a substance means the temperature at which the reaction occurs. When wood starts to heat using some external source, the cellulose material that is present in the wood decomposes, which then […]
Breathing is the process of taking in oxygen from surrounding and giving out carbon dioxide. The breathing process is different in different animals like in reptiles, mammals, birds, aquatic animals, etc. Frogs just after birth are called tadpoles. They breathe through gills and skin. It sounds weird but this is a part of incredible Nature.
Zygote is the basic cell formation in any cellular organism which leads to the development of multi-cellular organisms. It is formed when two gametes combine together by sexual reproduction. In single cell organisms, these are the main component of the organisms which are later divided into two to form offspring. Zygote is the embryo which
Photosynthesis is the process of grasping light energy and converting it into chemical energy in plants. In other words, we can also say photosynthesis is the breathing process of plants. It is just the right opposite to the human breathing system. Humans take inhale oxygen and release carbon dioxide whereas plants take carbon dioxide in
How does it happen that a bird on a wire doesn’t get shocked? When the bird perches on a live wire, its body becomes charged for the moment; it’s at the same voltage as the wire. But no current flows into its body. Electricity must have a path in order to travel. A power line
Long ago, Thunder and Lightning lived on the earth with the other people. Thunder was an old mother sheep and Lightning was her son, a ram. The King made them live at the far end of the town, as far as possible from the other people’s houses. Whenever the ram was furious, he used to
Parrots have been loved as pets. Their colours and the way they speak are one of the factors that people love them. Parrots imitate what others speak. They do not form words or know meanings but speak what they listen to. Parrots speak words, which are formed differently from the way humans form them. They
We take curd in almost our daily diet but do you know how it is really done? Actually, it can help you digest your food as well as can give taste too to your mouth. To make curd the solid and liquid part of milk are required to be separated. So after warming the milk
Plants need water to survive, which is an idea we’re probably already familiar with. Cactuses are thrifty plants that live in dry regions. They may not get much moisture where they live, but they manage to make the most of what they do get. Cactuses (sometimes also called ‘Cacti’) are types of plants called ‘Succulent,’
Taste is actually a chemical sense which is perceived by the receptor cells of the taste buds present on tongue. Our tongue actually is divided into four different types of papillae which are also called bumps. In each papilla, 50-250 taste buds exist and these taste buds consist of 15 to 20 taste receptor cells
You must be known to the fact that it is the eggshells which protect growing chickens. If used for protection purpose, it means they are strong but to which extent, is really a less known fact. The eggshells are the outer covering made up of fertilized gamete which locates on the yolk surface and is
Beauty is always compared with the moon and it has a spot on it. The moon contains both. Earlier, it was believed that dark patches on the moon are actually a large sea and so they named it ‘Maria’ but in reality, on the moon water is not found. These dark patches are actually because
On a man’s head around 100,000 to 150,000 hairs are found which gets lost in old age but a few starts going bald from the age of 30 too. There are various reasons behind such like privilege, gender, power, youth, etc. In males generally, baldness appears on the front side which is called Androgenetic Alopecia.
Olympic game, which is also called Pan-Hellenic Games, was firstly held in 776 BC in Olympia, Greece, and continued till Theodosius I stopped it after 393 AD. It was then restarted after 1503 years, in 1896, by Baron Pierre de Coubertin and from that time it is held every 4 years and lasts for one
A report says that whether male or female they must cry once at least in month and when we cry tears come out. Tears are actually produced in lachrymal glands near the eyes and consist of water, mucous and oil. In tears, several hormones exist and prolactin is one of them which regulates the moods