Instruction: Write true if the given statement is correct, otherwise, write false.
1. True - A mineral is considered as an essential part of the everyday living of
humankind.
2. True - Minerals were used during the ‘Stone Age’, ‘Bronze Age’, and ‘Iron Age’.
3. True - Minerals can be seen at home, in personal things, as components of
electronics, for making jewelry, and for health and medicine.
4. True - The use of minerals depends on the mineral’s physical and chemical
properties.
5. False - The mineral iron is a poor conductor of electricity and has a high melting
point.
6. True - Silicon chip is important in computers. Quartz is composed of silicon. The
screen of the computer is also made from quartz.
7. False - Silicone is an excellent electrical conductor.
8. True - Being lightweight and strong, titanium and aluminum are good in
manufacturing airplanes. It is also good in making space shuttles.
9. True - Medicines are also composed of some minerals. An example is kaolinite
which is sometimes included in the medicines you intake or lotions that you put
on your skin.
10. True - Among the metals, tungsten has the highest melting point. This is the
reason why the tungsten is used in making the filaments of a light bulb since the
bulb can be very hot.
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