materials
TRANSCRIPT
![Page 1: MATERIALS](https://reader035.vdocuments.mx/reader035/viewer/2022070522/58eea4fe1a28ab88028b467f/html5/thumbnails/1.jpg)
Unit 5Materials
5th Grade2015/2016
![Page 2: MATERIALS](https://reader035.vdocuments.mx/reader035/viewer/2022070522/58eea4fe1a28ab88028b467f/html5/thumbnails/2.jpg)
What do I know?
![Page 3: MATERIALS](https://reader035.vdocuments.mx/reader035/viewer/2022070522/58eea4fe1a28ab88028b467f/html5/thumbnails/3.jpg)
MATERIALS
What’s the difference between natural and artificial materials?
![Page 4: MATERIALS](https://reader035.vdocuments.mx/reader035/viewer/2022070522/58eea4fe1a28ab88028b467f/html5/thumbnails/4.jpg)
MATERIALSMaterials can have different origins.
NATURAL
ARTIFICIAL
![Page 5: MATERIALS](https://reader035.vdocuments.mx/reader035/viewer/2022070522/58eea4fe1a28ab88028b467f/html5/thumbnails/5.jpg)
MATERIALSMaterials can have different origins.
• They are obtained directly from nature.
• For example:NATURAL
• Humans make them from natural materials.
• For example:ARTIFICIAL
![Page 6: MATERIALS](https://reader035.vdocuments.mx/reader035/viewer/2022070522/58eea4fe1a28ab88028b467f/html5/thumbnails/6.jpg)
RAW MATERIALSHumans use different materials to make what they need.
These materials come from natural resources called RAW MATERIALS.
![Page 7: MATERIALS](https://reader035.vdocuments.mx/reader035/viewer/2022070522/58eea4fe1a28ab88028b467f/html5/thumbnails/7.jpg)
RAW MATERIALSRaw materials can come from different sources:
OF ANIMAL ORIGIN
OF PLANT ORIGIN
STONE MATERIALS
USED IN CONSTRUCTION• • •
USED AS AN ENERGY SOURCE• •
MINERALS
![Page 8: MATERIALS](https://reader035.vdocuments.mx/reader035/viewer/2022070522/58eea4fe1a28ab88028b467f/html5/thumbnails/8.jpg)
RAW MATERIALSRaw materials can come from different sources:
OF ANIMAL ORIGIN
Leather
Wool
Silk
OF PLANT ORIGIN
Plants
Wood
Cotton
STONE MATERIALS
USED IN CONSTRUCTION• Marble• Granite• Gypsum
USED AS AN ENERGY SOURCE• Coal• Oil
MINERALS
Bauxite
Precious stones:
diamonds and rubies
![Page 9: MATERIALS](https://reader035.vdocuments.mx/reader035/viewer/2022070522/58eea4fe1a28ab88028b467f/html5/thumbnails/9.jpg)
RAW MATERIALS OF ANIMAL ORIGIN
![Page 10: MATERIALS](https://reader035.vdocuments.mx/reader035/viewer/2022070522/58eea4fe1a28ab88028b467f/html5/thumbnails/10.jpg)
RAW MATERIALS OF PLANT ORIGIN
![Page 11: MATERIALS](https://reader035.vdocuments.mx/reader035/viewer/2022070522/58eea4fe1a28ab88028b467f/html5/thumbnails/11.jpg)
STONE MATERIALS
![Page 12: MATERIALS](https://reader035.vdocuments.mx/reader035/viewer/2022070522/58eea4fe1a28ab88028b467f/html5/thumbnails/12.jpg)
STONE MATERIALS
![Page 13: MATERIALS](https://reader035.vdocuments.mx/reader035/viewer/2022070522/58eea4fe1a28ab88028b467f/html5/thumbnails/13.jpg)
MINERALS
![Page 14: MATERIALS](https://reader035.vdocuments.mx/reader035/viewer/2022070522/58eea4fe1a28ab88028b467f/html5/thumbnails/14.jpg)
Classify these materials
NATURAL
ARTIFICIAL
paper wood plastic steel wool glass leather silk
![Page 15: MATERIALS](https://reader035.vdocuments.mx/reader035/viewer/2022070522/58eea4fe1a28ab88028b467f/html5/thumbnails/15.jpg)
Classify these materialspaper wood plastic steel
wool glass leather silk• wood• wool• leather• silk
NATURAL
• paper• glass• plastic• steel
ARTIFICIAL
![Page 16: MATERIALS](https://reader035.vdocuments.mx/reader035/viewer/2022070522/58eea4fe1a28ab88028b467f/html5/thumbnails/16.jpg)
Properties of materials
Properties of
materials
HARDNESS
CONDUCTIVITY
THERMAL INSULATION
ACOUSTIC INSULATION
WATERPROOF
![Page 17: MATERIALS](https://reader035.vdocuments.mx/reader035/viewer/2022070522/58eea4fe1a28ab88028b467f/html5/thumbnails/17.jpg)
Name the properties of these materials:
Wood
Silk
Marble
Iron
Plastic
Cork
Latex
Wool
Glass
Leather
![Page 18: MATERIALS](https://reader035.vdocuments.mx/reader035/viewer/2022070522/58eea4fe1a28ab88028b467f/html5/thumbnails/18.jpg)
Materials used in the manufacture of a scooter
![Page 19: MATERIALS](https://reader035.vdocuments.mx/reader035/viewer/2022070522/58eea4fe1a28ab88028b467f/html5/thumbnails/19.jpg)
Materials used in the manufacture of a necklace
![Page 20: MATERIALS](https://reader035.vdocuments.mx/reader035/viewer/2022070522/58eea4fe1a28ab88028b467f/html5/thumbnails/20.jpg)
Materials used in the manufacture of a watch
![Page 21: MATERIALS](https://reader035.vdocuments.mx/reader035/viewer/2022070522/58eea4fe1a28ab88028b467f/html5/thumbnails/21.jpg)
TASK 1: WE ARE INVENTORS!
Invent and object. Draw it.Describe its utility.Choose the materials it is made of and explain why you chose them.
WILF (What I Look For)-Presentation-Language-Creativity- Description of the utility of the object.-Description of the materials.
![Page 22: MATERIALS](https://reader035.vdocuments.mx/reader035/viewer/2022070522/58eea4fe1a28ab88028b467f/html5/thumbnails/22.jpg)
SPECIAL CUTLERYDescription: this cutlery set has got a tank to save salt, sugar, pepper and other spices. They are very useful because you can season your food at the same time you eat.
Metal. The blade of the knife is made of metal because it is hard and resistant.
Wood. The corpus is made of wool because it is thermal insulator. Therefore, when we eat, we don’t get burned.
Diamond. The box of the set is made of diamond because it is hard and transparent.
![Page 23: MATERIALS](https://reader035.vdocuments.mx/reader035/viewer/2022070522/58eea4fe1a28ab88028b467f/html5/thumbnails/23.jpg)
TECHNOLOGY HAS ADVANCED WITH THE INVENTION OF NEW MATERIALS
Glass. It is transparent and can be made into many shapes. We use it to make glasses, bottles, windows and mirrors.
Paper. It is made from cellulose obtained from wood. We use paper for newspapers, books, bags…
New fabrics. New textiles have been developed. Elastic and waterproof materials are good thermal insulators and used to make swimwear.
![Page 24: MATERIALS](https://reader035.vdocuments.mx/reader035/viewer/2022070522/58eea4fe1a28ab88028b467f/html5/thumbnails/24.jpg)
TECHNOLOGY HAS ADVANCED WITH THE INVENTION OF NEW MATERIALS
Semiconductors. They are used in the electronic circuits of computers, in laser devices, in lightning, etc.
Superconductors. They conduct electricity very well. They are used:
-in magnetic levitation trains-for transporting electric current in devices.
Quantum levitation: https://www.youtube.com/watch?v=Ws6AAhTw7RA
![Page 25: MATERIALS](https://reader035.vdocuments.mx/reader035/viewer/2022070522/58eea4fe1a28ab88028b467f/html5/thumbnails/25.jpg)
TECHNOLOGY HAS ADVANCED WITH THE INVENTION OF NEW MATERIALS
Fibreglass. It is very resistant and easy to shape. It is used in cars and ships.
Optical fibre transmits light.
![Page 26: MATERIALS](https://reader035.vdocuments.mx/reader035/viewer/2022070522/58eea4fe1a28ab88028b467f/html5/thumbnails/26.jpg)
TASK 2: GRAPHENE
Read the text about grapheneDescribe its properties.Explain its applications.
WILF (What I Look For)-Presentation-Language-Description of its properties.-Explanation of its applications.