This document contains 53 exam questions about minerals, rocks, and the structure of the Earth. The questions cover topics such as the properties of minerals like hardness, luster, and cleavage. They also address the classification of rocks by origin, the formation of sedimentary, igneous, and metamorphic rocks, and methods of mining and drilling for resources like ores, coal, petroleum, gravel, and other materials. Finally, the questions cover the major layers of the Earth's structure including the crust, mantle, core, lithosphere, tectonic plates, and asthenosphere.

1. EXAM QUESTIONS (to learn better) for Lesson 7 The solid part of the Earth.
1. Why have always humans used minerals and mineral resources?
2. What are the Prehistoric stages named after?. Name them.
3. Name the main features of minerals.
4. Explain the chemical composition of minerals.
5. Define mineral.
6. Explain the crystalline structure. When is a mineral called a crystal?.
7. What natural conditions are needed for a crystal to be formed?
8. Explain hardness, like property of minerals.
9. Explain lustre, like property of minerals.
10. Explain colour, like property of minerals.
11. Explain streak, like property of minerals.
12. Explain transparency, like property of minerals.
13. Explain cleavage, like property of minerals.
14. Explain magnetism, like property of minerals.
15. Explain when a mineral is called ore of a metal.
16. Explain the ore, alloys and uses of iron.
17. Explain the ore, alloys and uses of tin.
18. Explain the ore, alloys and uses of aluminium.
19. Explain the ore, alloys and uses of mercury.
20. Explain the ore, alloys and uses of copper.
21. Explain the ore, alloys and uses of lead.
22. Explain the ore, alloys and uses of zinc.
23. Explain the use of minerals to make paint and pigments.
24. Explain the uses of gypsum.
25. Explain the use of minerals in jewellery.
26. Explain the gems or precious stones.
27. Explain the noble metals.
28. Explain the ruby and sapphire.
29. Explain the emerald and aquamarine.
30. Define rocks.
31. Explain the difference between consolidated and unconsolidated rocks, and give some examples.
32. Explain the rocks made of living things.
33. Explain the origin and types of coal.
34. Explain the origin of petroleum.
35. Explain the classification of rocks.
36. Explain the types of rocks according to their origin.
37. Explain the formation of sedimentary rocks.
38. Explain the types and uses of sedimentary rocks according to the size of the grains.
39. Explain the classification, formation and uses of igneous rocks.
40. Explain the formation, classification and uses of metamorphic rocks.
41. What does the mining of an area depend on?.
42. Explain the underground mining.
43. Explain the open-pit mining.
44. Explain the ore, pit, quarry, shaft and seam.
45. Explain the rock mining.
46. Explain the gravel pits.
47. Explain the oil drilling.
48. Explain the drilling.
49. Name the layers of the Earth and its discontinuities.
50. Explain the crust, its depth and types.
51. Explain the mantle, its formation and areas.
52. Explain the core, its composition and areas.
53. Explain the lithosphere, the tectonic plates and the asthenosphere.