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Jugar Test
1. 
Metal can oxidise but cardboard cannot
A.
True
B.
False
2. 
The chemical properties of materials are observed while under external stimuli such as light , electricity, heat, applied forces.
A.
True
B.
False
3. 
Wood is denser than stones so that why it floats
A.
True
B.
False
4. 
Renewable materials exits in nature in unlimited amounts
A.
True
B.
False
5. 
The opposite property to brittleness is toughness
A.
True
B.
False
6. 
If a material has little density means that it’s very porous
A.
True
B.
False
7. 
The steel structures of old buildings are reddish-brown because they contain copper
A.
True
B.
False
8. 
A hard material can be brittle
A.
True
B.
False
9. 
Metals are excellent thermal conductors
A.
True
B.
False
10. 
Ecological properties are related to the impact that materials have on the environment
A.
True
B.
False
11. 
Plasticine is an elastic material
A.
True
B.
False
12. 
Porous materials have a higher density
A.
True
B.
False
13. 
Organic materials take the longest to decompose
A.
True
B.
False
14. 
Translucent materials allow to pass through but you can’t see clearly what is behind them
A.
True
B.
False
15. 
Weldability is the ease with which a material can be melted
A.
True
B.
False
16. 
Plasticity allows the material to return to (recover) its original shape and size when the force is removed
A.
True
B.
False
17. 
Tough materials are those that can resist hits that tends to break them.
A.
True
B.
False
18. 
Rust is another name for oxidised iron
A.
True
B.
False
19. 
Malleability is the property of some materials that allows them to be made into cables or filaments
A.
True
B.
False
20. 
Plastics are good electric conductors
A.
True
B.
False
21. 
Gold oxidises easily
A.
True
B.
False
22. 
To find out if a material is a thermal conductor, when you touch it, it becomes cold
A.
True
B.
False
23. 
A brick is a plastic derivative
A.
True
B.
False
24. 
Thermal expansion is the increase in the size of a material when its temperature goes up.
A.
True
B.
False
25. 
Wood is a material sensitive to thermal expansion
A.
True
B.
False