Formation Of Rocks
Akopọ
The ground beneath your feet is not as still as it looks. Granite kitchen worktops, the slate on a roof, the limestone in a cathedral and the marble of a statue all began as something else and were made over by heat, pressure, water and time. Geologists group every rock on Earth into just three families, and each family tells the story of how it was born. Learn to read those stories and you can pick up almost any rock and say where it came from.
In this lesson you will see how igneous, sedimentary and metamorphic rocks form, and how the rock cycle links all three so that one rock type can slowly become another. You will also meet permeability, the property that decides whether water soaks through a rock or runs off it. These ideas underpin everything that follows in this unit, from where we mine metals to where groundwater is stored.
Awọn Afojusun
- 1.1.1 Describe the formation of named igneous, sedimentary and metamorphic rocks, limited to: (a) igneous: granite and basalt (b) sedimentary: limestone, sandstone and shale (c) metamorphic: marble and slate.
- 1.1.2 Describe and interpret the rock cycle, limited to: (a) weathering (b) erosion (c) transportation (d) sedimentation (e) compaction (f) cementation (g) crystallisation (h) deposition.
- 1.1.3 Define permeability as the ability of water to pass through the pore spaces of rock and soil.
- 1.1.4 Classify rocks as permeable and impermeable, limited to: (a) permeable: most sedimentary rocks (limestone and sandstone) (b) impermeable: igneous, metamorphic and some sedimentary rocks (shale).
Akọ̀wé Ẹ̀kọ́
O wa lori ohun elo Green Bridge
Gba ohun elo Green Bridge CBT sori foonu tabi kọmputa rẹ lati ri awọn akọsilẹ ẹkọ ni kikun, awọn ibeere adaṣe, ati diẹ sii.
Ìdánwò Ẹ̀kọ́
Oriire fun ipari ẹkọ lori Formation Of Rocks. Ni bayi ti o ti ṣawari naa awọn imọran bọtini ati awọn imọran, o to akoko lati fi imọ rẹ si idanwo. Ẹka yii nfunni ni ọpọlọpọ awọn adaṣe awọn ibeere ti a ṣe lati fun oye rẹ lokun ati ṣe iranlọwọ fun ọ lati ṣe iwọn oye ohun elo naa.
Iwọ yoo pade adalu awọn iru ibeere, pẹlu awọn ibeere olumulo pupọ, awọn ibeere idahun kukuru, ati awọn ibeere iwe kikọ. Gbogbo ibeere kọọkan ni a ṣe pẹlu iṣaro lati ṣe ayẹwo awọn ẹya oriṣiriṣi ti imọ rẹ ati awọn ogbon ironu pataki.
Lo ise abala yii gege bi anfaani lati mu oye re lori koko-ọrọ naa lagbara ati lati ṣe idanimọ eyikeyi agbegbe ti o le nilo afikun ikẹkọ. Maṣe jẹ ki awọn italaya eyikeyi ti o ba pade da ọ lójú; dipo, wo wọn gẹgẹ bi awọn anfaani fun idagbasoke ati ilọsiwaju.
- Which rock type is formed when molten magma cools and solidifies? A. Sedimentary B. Metamorphic C. Igneous D. Fossil Answer: C
- A rock contains visible large crystals and no layers. It most likely formed by: A. Rapid cooling of lava at the surface B. Slow cooling of magma underground C. Compaction of sediment D. Heat and pressure on shale Answer: B
- Which of the following is an impermeable sedimentary rock? A. Limestone B. Sandstone C. Shale D. Granite Answer: C
- Limestone is changed into marble by: A. Weathering and erosion B. Compaction and cementation C. Heat and pressure D. Melting and crystallisation Answer: C
- Permeability is best defined as the ability of: A. A rock to resist scratching B. Water to pass through the pore spaces of a rock C. A rock to contain fossils D. Crystals to form on cooling Answer: B
O wa lori ohun elo Green Bridge
Gba ohun elo Green Bridge CBT sori foonu tabi kọmputa rẹ lati ri awọn akọsilẹ ẹkọ ni kikun, awọn ibeere adaṣe, ati diẹ sii.
O wa lori ohun elo Green Bridge
Gba ohun elo Green Bridge CBT sori foonu tabi kọmputa rẹ lati ri awọn akọsilẹ ẹkọ ni kikun, awọn ibeere adaṣe, ati diẹ sii.
Awọn Iwe Itọsọna Ti a Gba Nimọran
Ṣe Adaṣe Awọn Ibeere Idanwo Adaṣe
Ṣe o fẹ ṣe adaṣe awọn ibeere idanwo adaṣe nipa Formation Of Rocks? Ṣe igbasilẹ ohun elo Green Bridge CBT lati wọle si awọn ibeere idanwo adaṣe ati awọn ayẹwo adaṣe kikun fun koko-ọrọ yii.
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