Grade 6 Exam > Grade 6 Videos > Science for Grade 6 > Uses of Metals and Non-Metals
Uses of Metals and Non-Metals Video Lecture | Science for Grade 6
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FAQs on Uses of Metals and Non-Metals Video Lecture - Science for Grade 6
| 1. What are the uses of metals? |  |
Ans. Metals have various uses in our daily life. Some common uses of metals include:
- Iron and steel are used in the construction industry to make structures like buildings, bridges, and highways.
- Aluminum is used in the manufacturing of cans, foils, and kitchen utensils.
- Copper is used in electrical wiring and plumbing due to its excellent conductivity.
- Gold and silver are used in jewelry making.
- Titanium is used in aerospace and medical industries due to its strength and resistance to corrosion.
| 2. What are the uses of non-metals? | |
Ans. Non-metals also have a wide range of applications. Some common uses of non-metals include:
- Carbon is used in the production of fuels, such as coal and natural gas.
- Oxygen is essential for respiration and combustion processes.
- Nitrogen is used in the manufacturing of fertilizers and as a coolant in the food industry.
- Chlorine is used in water treatment and as a disinfectant.
- Silicon is used in the production of computer chips and solar panels.
| 3. Can metals and non-metals be combined? | |
Ans. Yes, metals and non-metals can combine to form compounds. These compounds are known as metal non-metal compounds or ionic compounds. In ionic compounds, metals lose electrons to form positively charged ions, while non-metals gain electrons to form negatively charged ions. The positive and negative ions attract each other and form a stable compound. For example, sodium (a metal) combines with chlorine (a non-metal) to form sodium chloride (table salt).
| 4. Are there any similarities between metals and non-metals? | |
Ans. Despite having different physical and chemical properties, metals and non-metals do share some similarities. Both metals and non-metals are elements found on the periodic table. They can both form compounds by combining with other elements. Additionally, both metals and non-metals can exist in various states of matter, such as solid, liquid, or gas, depending on the specific element and conditions.
| 5. Can metals and non-metals conduct electricity? | |
Ans. Metals are generally good conductors of electricity due to the presence of free electrons that can move freely within the metal lattice. This allows the transfer of electric charge. On the other hand, non-metals are poor conductors of electricity as they do not have free electrons. However, some non-metals like graphite can conduct electricity due to the presence of delocalized electrons in their structure.
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Dec 28, 2024 Last updated |
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