Class 2 Exam > Class 2 Videos > Science for Class 2 > Rocks and Minerals
Rocks and Minerals Video Lecture | Science for Class 2
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13 videos|80 docs|24 tests
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FAQs on Rocks and Minerals Video Lecture - Science for Class 2
| 1. What is the difference between a rock and a mineral? |  |
Ans. Rocks are composed of one or more minerals, while minerals are naturally occurring inorganic substances with specific chemical compositions and crystal structures. In other words, minerals are the building blocks of rocks.
| 2. How are rocks classified? | |
Ans. Rocks are classified into three main types based on their formation process: igneous, sedimentary, and metamorphic rocks. Igneous rocks form from the cooling and solidification of molten rock, sedimentary rocks form from the accumulation and compaction of sediments, and metamorphic rocks form from the transformation of existing rocks under high pressure and temperature.
| 3. What are some examples of minerals commonly found in rocks? | |
Ans. Some common minerals found in rocks include quartz, feldspar, mica, calcite, and hematite. These minerals can be identified based on their physical properties such as color, hardness, and crystal shape.
| 4. How can rocks and minerals be used in everyday life? | |
Ans. Rocks and minerals have numerous everyday uses. For example, rocks like granite and marble are used in construction materials and countertops. Minerals like iron ore are used to make steel, while minerals like copper and aluminum are used in electrical wiring and appliances. Additionally, gemstones such as diamonds and rubies are used in jewelry.
| 5. How are rocks and minerals formed? | |
Ans. Rocks and minerals are formed through various geological processes. Igneous rocks are formed when molten rock cools and solidifies. Sedimentary rocks are formed by the accumulation and compaction of sediments over time. Metamorphic rocks are formed when existing rocks undergo changes in their mineral composition and texture due to heat and pressure.
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Dec 17, 2024 Last updated |
Video Description: Rocks and Minerals for Class 2 2024 is part of Science for Class 2 preparation.
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