Zusammenfassung der Ressource
Frage 1
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Are these natural or synthetic materials?
Wood, cotton, wool, silk and leather.
Frage 2
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What are raw materials?
Frage 3
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What is this the definition of?
How good a material is at resisting a force.
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Density
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Hardness
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Strength
Frage 4
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What is this the definition of?
How difficult a material is to cut into.
Antworten
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Density
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Strength
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Melting point
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Hardness
Frage 5
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Is this the definition of melting point?
The temperature where a solid turns to a gas.
Frage 6
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A [blank_start]stiff[blank_end] material is good at not [blank_start]bending[blank_end] when a force is applied to it. A bendy material can still be [blank_start]strong[blank_end] as long as the force does not [blank_start]permanently[blank_end] deform it.
Antworten
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stiff
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bending
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strong
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permanently
Frage 7
Frage 8
Antworten
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Fairly strong, hard and stiff. They are fairly low density. Some are mouldable.
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Strong, flexible and mouldable.
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Soft and flexible. They have good tensile strength.
Frage 9
Frage 10
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Are these uses of crude oil?
Petrol, diesel and lubricating oil.