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Overview         (For age - group : 11 - 16 )

Educational science animation " Classification of matter " : Classifying matter was the biggest challenge in the previous century and discovery of patterns was the key factor that helped in understanding the nature and its elements. This led to evolution of structure in science and many fields evolved from this structure, to make science what it is today. This animated chemistry topic gives in-depth information about classification of matter and is very useful for school teachers and students both.

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Category : Science
Type : Animation
Total animation length: 30 minutes

The animation covers:

What is an element ?
What are the properties of metal, nonmetals and metalloids ?
How do compounds form ?
Compound versus constituent elements ?
How do mixtures form? What are the types of mixture ?
Complete mechansim of salt dissolving in water explained
Law of conservation of mass

More about matter in explanatory notes:

Mendeleev's periodic table,
Why are most elements solid?
Why don't oil and water form homogeneous mixture?

Snapshots         
classification of matter

Classification of matter

Metals, non-metals and metalloids classification

Metals, nonmetals and metalloids classification

Non -metals - Sulphur and Bromine

Non -metals - Sulphur and Bromine

Metals are good conductors of electricity

Metals are lustrous, they shine in light
Metals are good conductors of electricity
Metals are lustrous, they shine in light
Non-metals are brittle
Metals are malleable and ductile
Nonmetals are brittle
Metals are malleable and ductile
Homogeneous mixtures - salt is dissolved in water
sodium chloride
Homogeneous mixtures - salt is dissolved in water
Sodium chloride - ions of sodium and chlorine
Heterogeneous mixtures - mixture of sand and charcoal can be separated out using a magnet
magnet separating out iron filings from sand
Heterogeneous mixtures - mixture of sand and charcoal can be separated out using a magnet
Details of the animation/ movie /software

Matter can be classified into pure substances and mixtures.

A Pure substance has uniform composition throughout.
It consist only one phase i.e. it consists of molecule of only one type
Example: Iron,water, table salt (NaCl) and sugar.

Pure substances are classified into two categories
1) Elements
2) Compounds

Classification of the elements is further done as metals, nonmetals, and metalloids.
metals have a high melting and boiling point
(Metals have a high melting and boiling point)

Compounds, in chemistry, are a substance composed of atoms of two or more elements in chemical combination, occurring in a fixed or definite proportion and arranged in a fixed, definite structure. A compound is often represented by its chemical formula. The formula for water is H2O, and for sodium chloride, NaCl. The formula weight of a compound can be determined from its formula.

Mixtures, in chemistry, are a physical combination of two or more pure substances (i.e., elements or compounds).

Example: Petrol, milk and air (Air is homogeneous mixture of oxygen, nitrogen, carbon dioxide and water vapour)

A mixture is distinguished from a compound, which is formed by the chemical combination of two or more pure substances in a fixed, definite proportion. The components of a mixture retain their own chemical properties and may be present in any proportion. For example, iron filings may be mixed with powdered sulfur in any proportion, and even if very fine iron powder is carefully mixed with powdered sulfur, the two components are easily separated by means of a magnet.

Mixtures are often classified as homogeneous or heterogeneous. Solutions and colloids are homogeneous mixtures. The components of a homogeneous mixture are too intimately combined to be distinguished from one another by visual observation. A suspension is a heterogeneous mixture. The particles in a heterogeneous mixture are coarse enough to be distinguished by visual observation.

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Q & A
Q1: what meaning of non metals sheng 19/8/2015
Ans:
   
Q2: How electron was discoverd? Nazir shah 19/9/2014
Ans:
   
Q3: what is metal and nonmetal iftekhar alam 7/5/2013
Ans:
   
Q4: WHO INVENTED THE VIHECHELS BLAS ANTHONY CLAVANO 8/2/2012
Ans:
   
Q5: is nickel a solid non metal vinit 2/6/2011
Ans:
   
Q6: how to make mirror with sillica chetan 21/9/2010
Ans:
   
Q7: what is the essential difference between animate and inanimate matter? Shereen 23/1/2010
Ans:
   
Q8: what is the classification of suspension? kamini 17/1/2010
Ans:
   
Q9: what are the most general classification of matter are sodium chloride, hydrochloric acid, salt and water, hair gel, sodium, smoke in air? twinkle 20/8/2008
Ans:
   
Q10: we need hint to formulate questionnaire related to composition of matter,types of matter through examples of daily life zubia farah 3/6/2008
Ans: Some of the examples we have covered above, the questions can also be on is water a mixture or compound, what is paper? What is a plastic composed of? What is cloth? I believe things that you can look around yourself and list could be a good source of questions for your project.
   
Q11: What is the meaning of hypothesis Aloysius 21/9/2007
Ans: Hypothesis is an idea that needs research and scientific evaluation to be proved correct or false. For example if someone puts forward an idea that summers are getting hotter year by year – this will be a hypothesis, suppose after careful research and data compilation he proves it to be correct then it becomes a theory or a part of larger theory that global warming is happening. Such hypotheses are used for predicting results, in labs, of weather, of behavior etc.
   
Q12: Can matter be classified through visual observation Aloysius 19/9/2007
Ans: Classification of matter just by visual observation is difficult, for example sugar and salt solution, water and acid look similar, most gases like CO2 (a compound) and N2, O2 (elements) are not even visible. If you hold a piece of black rock in your hand, it will be difficult for you to say whether it is graphite or not. To separately categorize elements from compounds and compounds from mixtures, analysis and testing through physical and chemical means is necessary for classification.
   
Q13: does suspension show tyndal effect? swarnim 14/9/2007
Ans: Only some suspensions such as emulsion (oil and water or kerosene and water) and colloidal dispersions (pottery clay and water, starch and water) show Tyndall effect (scattering of light when a light is shined through a suspension). It also depends on angle of light. Entirely colloidal solutions will look cloudy when the light is at an angle, but will look transparent when it is direct. Homogenous solutions (salt and water) and suspensions (Sand and water) do not show Tyndall effect.
   
Q14: is acid is belong to classification of matter pauline 29/8/2007
Ans: There are more than 4 million chemical compounds known. Acid is a special class of compounds. They are formed from hydrogen ions (the positive part) and an anion (the negative part). Example HNO3, H2SO4, HCl etc. They can also be classified into organic and inorganic or on the basis of anions. But largely they are part of compounds. The same goes for bases.
   
Q15: how can u classify metals pranathi 7/8/2007
Ans: Metals fall into the following non-rigid and not mutually exclusive classifications: alkali metals, alkaline earth metals, transition elements, noble (precious) metals, platinum metals, lanthanide (rare earth) metals, actinide metals, light metals, and heavy metals.
   
Q16: how can you diffentiate the matter from the chemistry? Jethro 7/8/2007
Ans: Only look at its 'physical' properties ;)
   
Q17: There is a big fault that "definition of pure substance" and air, milkand petrol are not pure substances nihal sokmen 18/3/2007
Ans: Yes there was a mix - up of lines in text in the details section, we have corrected that . Thanks a lot for pointing it out. We appreciate your suggestion.
   
Q18: how Can One mark the difference Between a mixture and a asolution? Jerry 23/2/2007
Ans: A solution is a homogeneous ‘mixture’ where a solute is ‘dissolved’ in a solvent. The word ‘dissolved’ is important as salt or sugar mix to form a mixture, this mixture dissolves in water to form a solution. Solutions can be of gas-gas (O2 in N2), liquid-liquid (alcohol-water), solid-solid (steel), gas-solid (H2-platinum), gas-liquid (CO2 –water), liquid-solid (Mercury –Gold), liquid-gas (water-vapor in air) etc. Note that non-homogeneous mixtures like colloids and suspensions are not solutions.
   
Q19: what is the classification of cement in chemistry? ian 21/2/2007
Ans: Portland Cement is a complex homogenous mixture of many compounds like Calcium oxide, CaO, Silicon oxide, SiO2, Aluminium oxide, Al2O3, Ferric oxide, Fe2O3 and sulphates.
   
Q20: what is the angle between NaCl molecules? Pamela 10/11/2006
Ans: No bonds therefore no angles just close packing . NaCl (sodium chloride) is an ionic solid arranged in face-centered cubic lattice form with adjoining identical ions attached to each other, NaCl does not exist in a binary pair in nature unlike water or carbon where molecules form a covalent bond and have angles between them. In short angle “between” NaCl molecules is not possible.
   
Q21: how make mirror within silver by electroless? saeed.abdeyazdan 14/6/2006
Ans: Mirrors are prepared either by Aluminum coating deposited on silver in a vacuum chamber or by Silver using wet process (hot and cold) . The coated glass is treated with AgNO3 solution for electrolysis. Deposition of silver is done by precipitating Silver out of AgNO3 solution onto a glass by a reducing agent such as Stannous chloride (or tartaric acid or sugar) already applied to the glass surface. The reaction is Sn(2+) + 2Cl(-) + 2Ag(+) + 2NO3(-) = Sn(4+) + 2Cl(-) + 2Ag(0) + 2NO3(-).
   


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