• Common name : Garden Asparagus • Scientific name : Asparagus officinalis • Family : Asparagaceae • Native land : Eastern Mediterranean and Asia Minor areas It is a spring vegetable, a flowering perennial. It is available from early September to March. An asparagus plant can grow up to 39–59 inches tall. It has stout […]
The presence of water vapour in the air is called humidity. Too much or too little humidity can be dangerous. Humidity is found in all places, but it varies. For example, when a can of ice-cold water is put on the table and allowed to stand for some time, moisture appears on the outside. Moisture
• Common name : Common Milkweed, Pleurisy Root • Scientific name : Asclepiassyriaca • Family : Apocynaceae • Native land : Eastern half of the United States and Southern Great Plains It is a native perennial plant. It grows best in rich sandy or gravelly loam soils. It contains a sticky white sap that is
• Common name : Goatsbeard • Scientific name : Aruncusdioicus • Family : Rosaceae • Native land : Northern hemisphere in North America, Europe, and Asia The word ‘Aruncus’ comes from the Greek word aryngos (goat’s beard) and refers to the feathery plume of flowers. It is a herbaceous, perennial plant. It is found along
Nails grow from the skin and are composed of a substance called ‘keratin’. Keratin is a tough-dead protein, horn-like in nature. Nails are closely attached to the skin. The exposed part of the nail is very thick, but as we go below the skin, near the root of the nail, we find that it is
• Common name : Arugula, Salad Rocket • Scientific name : Erucasativa • Family : Brassicaceae • Native land : Mediterranean region, from Morocco and Portugal in the west to Syria, Lebanon and Turkey in the east It is an edible annual plant, commonly known as salad rocket. It is one of the nutritious green
• Common name : Artichoke • Scientific name : Cynarascolymus • Family : Asteraceae • Native land : Mediterranean region It is one of the popular winter season, edible flower buds. It is a perennial plant. The ideal growing conditions for artichoke are cool and moist summers and mild winters. It grows up to 1.5-2.0
We cannot imagine a world without light. Light lets us see. Light was first studied by Sir Isaac Newton. He said that light consisted of minute particles which are shot out from the source of light. Another theory was suggested by Huygens. He said that light is in a form of ‘wave’ or ‘pulse’. Light
• Common name : Thrift • Scientific name : Armeriamaritima • Family : Plumbaginaceae • Native land : Eurasia, North Africa, and the American Pacific coast It is a perennial garden flower. There are about 80 species of this plant. Armeria got the name ‘thrift’ because of its ability to grow well even in harsh
• Common name : Woods Sorrel • Scientific name : Oxalis arenaria • Family : Oxalidaceae • Native land : South America It is a perennial herb. Wood sorrel has adapted to grow in forest shade. It is a fragile rhizome with creeping characteristics. Its leaves have long stalks with three leaflets and flowers have
Sneezing is a reflex action that happens without our control. We may sneeze due to irritation in the nose, due to a swelling in the mucous membrane, during a cold or an allergy. People sneeze to expel air and rid themselves of the irritating bodies present in the nose. When the inside of the nose
• Common name : Norfolk Island Pine • Scientific name : Araucaria heterophylla • Family : Araucariaceae • Native land : Norfolk Island, 1,000 km off the east coast of Australia It is an evergreen, coniferous tree. It looks like a pine with horizontal needle-like branches, but it is not part of the pine genus.
• Common name : Georgia Rockcress • Scientific name : Arabisgeorgiana Harper • Family : Brassicaceae • Native land : The US, Georgia Georgia rockcress is a perennial herb with unbranched stems up to 3 feet tall. It generally grows on steep river bluffs with shallow soil on rock or with exposed rock outcroppings. The
• Common name : Colorado Blue Columbine • Scientific name : Aquilegia caerulea • Family : Ranunculaceae • Native land : Rocky Mountains from Montana south to New Mexico and west to Idaho and Arizona It is a native perennial. It is the state flower of Colorado. The flower was first discovered in 1820 by
The phenomenon of colour was first discovered by Sir Isaac Newton. He proved that sunlight comprised several colours. He passed a beam of sunlight through a prism and discovered that the white light ray is a mixture of many colours. Without light, there is no colour. So, colour isn’t in the objects that we see