C2 - Material Choices

Mind Map by , created almost 6 years ago

Chemistry Mind Map on C2 - Material Choices, created by nicole_j_baldwin on 12/24/2013.

Created by nicole_j_baldwin almost 6 years ago
Chemistry Module C2: Material Choices
James McConnell
Chemical Symbols
C1 Quiz
Leah Firmstone
Principles of basic electrical circuits
Of Mice and Men
Acids and Bases quiz
Derek Cumberbatch
Ionic Bondic Flashcards.
The Periodic Table
Acids, Bases and Salts
C2 - Material Choices
1 Natural and Synthetic materials
1.1 All materials are made of chemicals
1.1.1 Made from atoms or groups of atoms (molecules)
1.2 natural
1.2.1 Materials from plants Wood and paper from trees Cotton from cotton plant
1.2.2 From anilmals Wool from sheep Silk from silkworm larvae Leather from cows
1.3 Synthetic - made by humans
1.3.1 can control porperties Rubber altered in a factory Nylon and Polyester for clothes Waterproofing, stretchy, sparkly Paints
1.3.2 Raw materials used to make synthetic materials come from the Earth's crust
2 Materials and Properties
2.1 Melting and boiling points
2.1.1 The temperature at which a: solid turns to liquid or a liquid turns to gas
2.2 Strength
2.2.1 The ability to resist a force before breakage or deformation Tensile Pulling force Ropes and cables Compressive Pushing force Concrete for construction
2.3 Stiffness
2.3.1 Inflexibility
2.4 Hardness
2.4.1 Difficulty to cut into a material Hard = Diamond Hardest naturally occuring material Soft = Paper
2.5 Density
2.5.1 Materials mass per unit volume eg. g/cm3
2.5.2 Buoyancy Objects which are less dense than water will float Objects which are more dense than water will sink.
3 Material's Properties and Uses
3.1 Uses for materials depend on the material's properties
3.1.1 Examples Plastics Hard, Strong and Stiff Low density (lightweight) Mouldable Cases for TVs, Computers and Kettles Rubber Strong Mouldable Car Tyres Nylon Fibres Soft and Flexible Good tensile strength Ropes and Clothing
3.2 Properties of a product depend on the materials
3.3 Suitablity of material for use
3.3.1 Cooking utensils Non toxix, high melting point
3.3.2 Toy car non toxic, strong, stiff and low density
4 Nanotechology
4.1 Nanomaterials are tiny
4.1.1 1nm = 0.000 000 001m
4.1.2 1-100 nanometres across are nanoparticles
4.1.3 Natural Sea-spray Combustion produces nano particulates
4.1.4 Different properties than larger particles of the same chemical Sliver cant kill bacteria due to its lower surface area to volume ratio
4.2 Branch of technology dealing with nanoparticles
4.2.1 Design nanomaterials for specific uses Strengthening sports materials such as tennis rackets, golf clubs and golf balls. Silver particles in surgical masks and plasters giving antibacterial properties
4.3 Ethics
4.3.1 Effects of nanoparticles are unknown Testing is important Long term risks cannot be tested Clearly labled so that consumers can choose to use or not use
5 A

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