All That Matters

DEET and insect repellant creams

If you live in an area with numerous biting insects like mosquitoes, flies, ticks etc, you must have heard the use of mosquito-repellant creams. DEET is one of the active ingredients found in most of the insect repellant creams. The chemical formula for DEET is N, N-diethyl-3-methyl-benzamide. There are other chemicals like N,N diethyl benzamide

Plants: Annuals, biennials and perennials

Annuals, biennials and perennials are plants that are classified according to their life expectancy. The life expectancies differ from species to species. An oak or teak tree may live for years together while a sun flower may not. When many a plant goes through its entire life cycle within a year, such plants are called

Law of conservation of energy: Be more clear

Energy is the capacity to do work. Any system be it an electrical system, a mechanical system or our own body, needs energy to do work. This could be of any nature like electrical, mechanical, thermal etc. The main fact is it cannot be created out of nothing and also it cannot be destroyed. All

Muscles in the tongue

Similar to fingerprints, everyone also has a unique tongue print. Tongue is a muscular organ which helps us to talk and in starting the process of digestion. It is also one of the five important sense organs which allow us to sense different tastes responding to pressure and heat. It is basically composed of skeletal

Dolphins: Know more about them

There are about 37 species of dolphins in the ocean. A group of dolphins is called school of dolphins or pod of dolphins. A school may consist of 12 – 1000 dolphins. They can swim up to a speed of 40 km/hr. Though the dolphins live in the oceans, they are not classified as fish.