Examples of some of the materials used in our daily lives - physique
Constituent materials
3 -) Conclusion: consists of objects used in everyday life of different materials: glass material, density of air table plastic material, paper material, iron material, copper material .....; these materials are classified into three main groups: glass. Metallic materials: iron, gold, aluminum, zinc, silver, mercury density of air table ........, organic materials: paper, plastic, wood ........ density of air table II - Materia: Each body of the objects surrounding us from the substance or several substances anisotropic Among them, some of which is natural and what is artificial ones. What are the distinguishing characteristics of each material? 1 -) electrical conductivity a - a pilot activity: accomplish a simple circuit and we include them in a row, and separately, the following objects: rods or sheets of metal, density of air table glass tube, and plastic parts. B - note: note that the lamp is lit only when the use of metals. C - the conclusion of metals electric conductors, while glass and plastic Aazlan of electricity. 2 -) thermal conductivity. A - Activity demo: Preheat respectively by Bunsen burner (Bensen) plate of some metals and glass tube and a piece of plastic.
Electrical conductivity
Interact with materials
Iron
1088 C
1 -), the most widely used plastic density of air table materials: A - Multi-Kruralffinel: Polychlorure de vinyle (PVC) and the cheapest of the most dangerous types of plastic, used in the manufacture of water pipes, electrical wiring membrane ..... b - Multi citrine Polystyrène symbol (PS)
Risk and unsafe, density of air table light, used in household equipment and electrical insulators and glasses Iaurt ..... c - multi-ethylene: Polyéthylène symbol PE: used in the manufacture of bags, and house wares, and the type of it high-quality called HDPE used to make cans shampoo and detergent and milk and is considered safe and private plastic transparencies of it ....... And type
A -) pilot activity: the experience of 1: Keep small pieces of plastic PET; PP; PVC; PS Cup by plain water, and other pieces in the Cup by the marinade. Experience 2 Keep small pieces of plastic PET; PP; PVC; PS Cup by saturated brine. Handling 3: Keep small pieces of plastic PET; PVC Cup by boiling water.
For Aatafo
Represent the types of plastic symbols idiomatic consisting of a triangle and number. Triangle density of air table shows that the recyclable plastic (or recycling). density of air table Figure refers to certain plastic material. Latin letters are an abbreviation for the name of plastic synonymous with a number in the triangle.
4 -) Notice Please keep in mind when buying any product packaged in a plastic tray, when holding any plastic tray containing food to see its base you will find a very small triangle etched density of air table plastic contains a number - If this number is 1 or 2 or 4 or 5, this enclosure is safe and do not interact with food - but if this number density of air table is 3, 6 or 7, this kind of plastic density of air table carcinogen which reacts with Aloatama and cause cancer diseases.
Ready for this activity, students can claim to bring different plastics used in packaging and gyrus, are in the first phase Note symbols and numbers density of air table registered on the bottoms of packaging materials, including discrimination and classification.
Considers three categories of materials (glass, organic materials, metal) materials mainly for gyre and canning food and appliances. density of air table Chosen material gyrus and canning so do not interact with the air, and with the article canned, also taking into account the resistance of the collision and conductivity electrical, thermal and permeability to liquids .
Pages A propos of physics and chemistry to the level of the third Preparatory electric power Catégorie Non classé (3) Liens LeWebPédagogique Restez informé Flux des entrées Flux des commentaires
Inscription gratuite et sans pub! | Version premium Qui sommes-nous? | CGU et mentions légales | Contacts Sauf mention contraire, le contenu de cette page est sous contrat Creative Commons. Que puis-je faire avec le contenu? Se connecter | Aide & Support | Content, pas content? | Petit Journal des Profs | LWP sur Twitter et sur Facebook
Constituent materials
3 -) Conclusion: consists of objects used in everyday life of different materials: glass material, density of air table plastic material, paper material, iron material, copper material .....; these materials are classified into three main groups: glass. Metallic materials: iron, gold, aluminum, zinc, silver, mercury density of air table ........, organic materials: paper, plastic, wood ........ density of air table II - Materia: Each body of the objects surrounding us from the substance or several substances anisotropic Among them, some of which is natural and what is artificial ones. What are the distinguishing characteristics of each material? 1 -) electrical conductivity a - a pilot activity: accomplish a simple circuit and we include them in a row, and separately, the following objects: rods or sheets of metal, density of air table glass tube, and plastic parts. B - note: note that the lamp is lit only when the use of metals. C - the conclusion of metals electric conductors, while glass and plastic Aazlan of electricity. 2 -) thermal conductivity. A - Activity demo: Preheat respectively by Bunsen burner (Bensen) plate of some metals and glass tube and a piece of plastic.
Electrical conductivity
Interact with materials
Iron
1088 C
1 -), the most widely used plastic density of air table materials: A - Multi-Kruralffinel: Polychlorure de vinyle (PVC) and the cheapest of the most dangerous types of plastic, used in the manufacture of water pipes, electrical wiring membrane ..... b - Multi citrine Polystyrène symbol (PS)
Risk and unsafe, density of air table light, used in household equipment and electrical insulators and glasses Iaurt ..... c - multi-ethylene: Polyéthylène symbol PE: used in the manufacture of bags, and house wares, and the type of it high-quality called HDPE used to make cans shampoo and detergent and milk and is considered safe and private plastic transparencies of it ....... And type
A -) pilot activity: the experience of 1: Keep small pieces of plastic PET; PP; PVC; PS Cup by plain water, and other pieces in the Cup by the marinade. Experience 2 Keep small pieces of plastic PET; PP; PVC; PS Cup by saturated brine. Handling 3: Keep small pieces of plastic PET; PVC Cup by boiling water.
For Aatafo
Represent the types of plastic symbols idiomatic consisting of a triangle and number. Triangle density of air table shows that the recyclable plastic (or recycling). density of air table Figure refers to certain plastic material. Latin letters are an abbreviation for the name of plastic synonymous with a number in the triangle.
4 -) Notice Please keep in mind when buying any product packaged in a plastic tray, when holding any plastic tray containing food to see its base you will find a very small triangle etched density of air table plastic contains a number - If this number is 1 or 2 or 4 or 5, this enclosure is safe and do not interact with food - but if this number density of air table is 3, 6 or 7, this kind of plastic density of air table carcinogen which reacts with Aloatama and cause cancer diseases.
Ready for this activity, students can claim to bring different plastics used in packaging and gyrus, are in the first phase Note symbols and numbers density of air table registered on the bottoms of packaging materials, including discrimination and classification.
Considers three categories of materials (glass, organic materials, metal) materials mainly for gyre and canning food and appliances. density of air table Chosen material gyrus and canning so do not interact with the air, and with the article canned, also taking into account the resistance of the collision and conductivity electrical, thermal and permeability to liquids .
Pages A propos of physics and chemistry to the level of the third Preparatory electric power Catégorie Non classé (3) Liens LeWebPédagogique Restez informé Flux des entrées Flux des commentaires
Inscription gratuite et sans pub! | Version premium Qui sommes-nous? | CGU et mentions légales | Contacts Sauf mention contraire, le contenu de cette page est sous contrat Creative Commons. Que puis-je faire avec le contenu? Se connecter | Aide & Support | Content, pas content? | Petit Journal des Profs | LWP sur Twitter et sur Facebook
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