Eclipse is an obscuring of the light from one celestial body by the passage of another between it and the observer. It can also be the obscuring of light between a body and its source of lighting. Types of Eclipses: From the earth, there are normally two kinds of eclipses which are experienced; this is [...]
Black hole is described by the amount of velocity needed by an object for it to escape the earth’s gravitational pull. The escape velocity of the earth is 11km/s. This means that for anything to escape the earth’s gravitational pull it must go approximately 11km/s. However, the escape velocity of an item depends on the [...]
Friction by definition refers to the force that resists the movement things. Types of friction: Dry friction which is the type of friction that normally resists the lateral movement of two surfaces that are in contact. It is also sub-divided into static friction that is between surfaces which do not move and kinetic friction which [...]
Force is what makes a body that is in a state of inertia to change its position or form. This change can be in the speed at which the object was moving at or the direction of the object or even the shape of the object. In more concise terms force is a pull or [...]
Energy is defined in a general sense as the ability to do work. This definition doesn’t shade much light to what is doing the work, and what work is. Ideally any from of activity will pass for work. The punching of keyboard keys to type these words is work, talking is work, cycling , running, [...]
Gases by definition are random groups of atoms. Unlike solids and liquids gases have atoms that move the most. Both solids and liquids have atoms that are compact though solids have the most compact atoms. The molecules found in gases have a lot of energy. This forms the main reason for their randomness. One unique [...]
Rocks are classified into various types, which are: Igneous rocks Sedimentary rocks Metamorphic rocks Igneous rocks: Igneous rocks are rocks which are crystalline in nature and are made when the magma of the earth cools down. The cooling of magma is a process that is exothermic to mean that it loses heat and takes place [...]
A food chain refers to a linear sequence of links in a food web that begins from a trophic species that consumes no other species in the web and completes at a trophic species that is consumed by no other species in the same food web. A food chain is almost different from the food [...]
A glacier is a thickened ice mass formed over many years after the accumulation of fallen snow, which did not melt but remained in a specific location and in the end transformed into ice. Glaciers move very slowly because of the stress caused by its weight, forming other distinguishing features and crevasses along the way. [...]
A galaxy is a group of many stars that can be term as a separate entity. The number of stars in a particular galaxy is not definite but it ranges between 10 million to trillions of them. There are many galaxies that exist in the sky and each has been identified and given particular [...]
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