Pure Substance Pure means that only one substance is present in the material and can be a pure element or compound. A simple physical test for purity, and properties that can help identify a substance, is to measure the boiling point or melting point. Every pure substance melts and boils at a fixed temperature. […]
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MODERN CLASSIFICATION OF LIVING ORGANISMS All organisms cannot be suitably classified as either plants or animals based on CarolusLinneaus classification. Therefore five kingdoms have been generally accepted for all living organisms, these include Monera, Protista, fungi, plantae and animalia. KINGDOM MONERA (Prokaryotes) This group consists of simplest living organisms (bacteria, blue-green anabaena). They are microscopic
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THE VERTEBRATES (PHYLUM CHORDATA) All vertebrates have the following features: A bilaterally symmetrical body which is divided into a head, trunk and a tail with a neck joining the head to the trunk in most vertebrates. An internal skeleton (endoskeleton) Well developed central nervous system and sense organs. A closed blood system Skin covered with
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Digital Computer This is the type of computer in which data are represented in digital or in discrete form, for example, 0, 1,2,3,4,5, etc. It is a type of computer that is used for processing numeric information. Digital computer measures physical quantities by using number to represent quantities. E.g. digital stop watch, electronic watch, calculator,
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This is based on nutrient composition: Feed additives. Roughages Are feeds of low available nutrients per unit weight and high fibre content Examples: Dry roughages, Succulent roughages, Residues from agricultural by products and conserved materials. Characteristics Low level of available nutrients. Have high level of calcium especially legumes. Good source of vitamin A. Have high
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There are four classification of computer by size name: (i) Micro computer (ii) Mini computer (iii) Mainframe computer (iv) Super computer Micro Computer A micro computer is the smallest computer that has a processor on a single silicon chip. Its CPU is a micro processor chip. Examples of micro computers are personal computer (PC), laptop
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Matter Matter can be classified as either a mixture or a pure substance. Mixtures contain at least two substances. If you can see the different parts of the mixture it is called a mixture.E.g. Soil and concrete Properties of mixtures depend on the proportions of the parts. Have you ever made a cup of coffee
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