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===Composition of the Earth===
The different layers of [[Earth]] are made of different materials.
*[[Crust]] - The most common chemical elements in the [[Crust]] are [[Oxygen]] (46.6%), [[Silicon]] (27.7%), [[AluminumAluminium]] (8.1%), [[Iron]] (5.0%), [[Calcium]] (3.6%).
*[[Mantle]] - The [[Mantle]] is mostly made of Silicate [[rock]]s.
*[[Outer Core]] - The [[Outer Core]] is mostly made of [[liquid]] [[Iron]] and [[Nickel]].
|}
: The '''Earth's Atmosphere''' has not always had the same proportions of [[gas]]es. 3.9 [[billion]] [[year]]s ago there was no [[Oxygen]] in the [[atmosphere]]. In the last 200 years humans have caused the [[Carbon Dioxide]] in the '''Earth's Atmosphere''' to double.
===Earth's Resources===
: '''Earth's''' [[resource]]s resources are the parts of the [[Earth]] that [[human]]s can use to survive, build technology and provide power.: The [[resource]]s resources on Earth are limited. Which means they can run out if we use them all. This means it's important to [[recycling|recycle]] our [[resource]]sresources.: The [[resource]]s resources humans need to survive are; fresh water, food and building materials. For this we need unpolluted rivers, land to grow crops and [[tree]]s and [[rock]]s to build our homes.: The [[resource]]s resources humans need to build technology are; [[metal]] [[ore]]s and [[Crude Oil|crude oil]].: The [[resource]]s resources humans need to provide power are; [[Crude Oil|crude oil]], [[coal]], [[Natural Gas|natural gas]], [[Nuclear Fuel|nuclear fuel]], [[biofuel]], [[Solar Power|sunlight]], [[Wind Power|wind]], [[Hydroelectric Power|river]]s, [[Tidal Power|tides]], [[Wave Power|waves]] and [[Geothermal Power|geothermal vents]].
: The [[Earth]]'s [[Magnetic Field|magnetic field]] helps protect the [[planet]] against Solar Flares from [[The Sun]].
{| class="wikitable"
|[[File:MagneticFieldLinesEarth.png|center|400px300px]]|[[File:MagneticFieldEarth.png|center|400px300px]]
|-
| style="height:20px; width:200px; text-align:center;" |This [[diagram]] shows the direction of [[Earth]]'s [[Magnetic Field|magnetic field]].
===Composition of the Earth===
The different layers of [[Earth]] are made of different materials.
*[[Crust]] - The most common chemical elements in the [[Crust]] are [[Oxygen]] (46.6%), [[Silicon]] (27.7%), [[AluminumAluminium]] (8.1%), [[Iron]] (5.0%), [[Calcium]] (3.6%).
*[[Mantle]] - The [[Mantle]] is mostly made of [[Silicate]] [[rock]]s.
*[[Outer Core]] - The [[Outer Core]] is mostly made of [[liquid]] [[Iron]] and [[NickleNickel]].*[[Inner Core]] - The [[Inner Core]] is mostly made of [[solid]] [[Iron]] and [[NickleNickel]].
===Earth's Atmosphere===
|}
: The '''Earth's Atmosphere''' has not always had the same proportions of [[gas]]es. 3.9 [[billion]] [[year]]s ago there was no [[Oxygen]] in the [[atmosphere]]. In the last 200 years humans have caused the [[Carbon Dioxide]] in the '''Earth's Atmosphere''' to double.
===Earth's Resources===
: '''Earth's''' [[resource]]s resources are the parts of the [[Earth]] that [[human]]s can use to survive, build technology and provide power.: The [[resource]]s resources on Earth are limited. Which means they can run out if we use them all. This means it's important to [[recycling|recycle]] our [[resource]]sresources.: The [[resource]]s resources humans need to survive are; fresh water, food and building materials. For this we need unpolluted rivers, land to grow crops and [[tree]]s and [[rock]]s to build our homes.: The [[resource]]s resources humans need to build technology are; [[metal]] [[ore]]s and [[Crude Oil|crude oil]].: The [[resource]]s resources humans need to provide power are; [[Crude Oil|crude oil]], [[coal]], [[Natural Gas|natural gas]], [[Nuclear Fuel|nuclear fuel]], [[biofuel]], [[Solar Power|sunlight]], [[Wind Power|wind]], [[Hydroelectric Power|river]]s, [[Tidal Power|tides]], [[Wave Power|waves]] and [[Geothermal Power|geothermal vents]].
===Earth's Magnetic Field===
: The [[Earth]]'s [[Magnetic Field|magnetic field]] helps protect the [[planet]] against Solar Flares from [[The Sun]].
{| class="wikitable"
|[[File:MagneticFieldLinesEarth.png|center|400px300px]]|[[File:MagneticFieldEarth.png|center|400px300px]]
|-
| style="height:20px; width:200px; text-align:center;" |This [[diagram]] shows the direction of [[Earth]]'s [[Magnetic Field|magnetic field]].
| style="height:20px; width:200px; text-align:center;" |The [[Magnetic Field|magnetic field]] of [[Earth]] appears as if there were a giant [[Bar Magnet|bar magnet]] inside the [[Earth]]. The North of [[Earth]] is the [[Poles|South Seeking Pole]] of a [[magnet]].
|}
===References===
====AQA====
:[https://www.amazon.co.uk/gp/product/1471851370/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1471851370&linkCode=as2&tag=nrjc-21&linkId=01c69b0ae058f809cf636033e6ba793e ''Earth, pages 248, 249, GCSE Physics, Hodder, AQA '']
:[https://www.amazon.co.uk/gp/product/0008158770/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0008158770&linkCode=as2&tag=nrjc-21&linkId=ec31595e720e1529e49876c3866fff6e ''Earth, pages 274-9, 290, 292, GCSE Physics; Student Book, Collins, AQA '']
:[https://www.amazon.co.uk/gp/product/019835939X/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=019835939X&linkCode=as2&tag=nrjc-21&linkId=57e96876985fc39b1a3d8a3e3dc238b6 ''Earth, pages 28-29, 186-187, 233, 236-237, GCSE Physics; Third Edition, Oxford University Press, AQA '']
:[https://www.amazon.co.uk/gp/product/1471851370/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1471851370&linkCode=as2&tag=nrjc-21&linkId=01c69b0ae058f809cf636033e6ba793e ''Earth; magnetic field, page 223, GCSE Physics, Hodder, AQA '']
:[https://www.amazon.co.uk/gp/product/1782945970/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945970&linkCode=as2&tag=nrjc-21&linkId=a120d24dcc7cc7a58192069a3aafc1d2 ''Earth; magnetic field, page 290, GCSE Physics; The Complete 9-1 Course for AQA, CGP, AQA '']
:[https://www.amazon.co.uk/gp/product/1471851370/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1471851370&linkCode=as2&tag=nrjc-21&linkId=01c69b0ae058f809cf636033e6ba793e ''Earth; orbit of, pages 253-5, GCSE Physics, Hodder, AQA '']
:[https://www.amazon.co.uk/gp/product/0008158770/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0008158770&linkCode=as2&tag=nrjc-21&linkId=ec31595e720e1529e49876c3866fff6e ''Earth; structure, page 211, GCSE Physics; Student Book, Collins, AQA '']
:[https://www.amazon.co.uk/gp/product/1782945970/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945970&linkCode=as2&tag=nrjc-21&linkId=a120d24dcc7cc7a58192069a3aafc1d2 ''Earth; structure, pages 285, 286, GCSE Physics; The Complete 9-1 Course for AQA, CGP, AQA '']
:[https://www.amazon.co.uk/gp/product/1471851370/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1471851370&linkCode=as2&tag=nrjc-21&linkId=01c69b0ae058f809cf636033e6ba793e ''Earth; temperature of, pages, 211-12, GCSE Physics, Hodder, AQA '']
:[https://www.amazon.co.uk/gp/product/1782945970/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945970&linkCode=as2&tag=nrjc-21&linkId=a120d24dcc7cc7a58192069a3aafc1d2 ''Earth; temperature; pages 258, 259, GCSE Physics; The Complete 9-1 Course for AQA, CGP, AQA '']
:[https://www.amazon.co.uk/gp/product/1471851362/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1471851362&linkCode=as2&tag=nrjc-21&linkId=7d78d70a2044ee9982dae010c94af92a ''Earth`s magnetic field, pages 277, GCSE Combined Science Trilogy 2, Hodder, AQA '']
:[https://www.amazon.co.uk/gp/product/1782946403/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782946403&linkCode=as2&tag=nrjc-21&linkId=32a0abb60dff015b15b50e9b1d7b4644 ''Earth’s magnetic field, page 217, GCSE Combined Science Trilogy; Physics, CGP, AQA '']
:[https://www.amazon.co.uk/gp/product/178294558X/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=178294558X&linkCode=as2&tag=nrjc-21&linkId=f0dfb66dafcb0c6e9449e7b1a4ae1ac103 ''Earth’s structure, page 90, GCSE Physics; The Revision Guide, CGP, AQA '']
:[https://www.amazon.co.uk/gp/product/178294558X/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=178294558X&linkCode=as2&tag=nrjc-21&linkId=f0dfb66dafcb0c6e9449e7b1a4ae1ac104 ''Earth’s temperature, page 87, GCSE Physics; The Revision Guide, CGP, AQA '']
====OCR====
:[https://www.amazon.co.uk/gp/product/0198359837/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0198359837&linkCode=as2&tag=nrjc-21&linkId=3c4229e8b023b2b60768e7ea2307cc6f ''Earth; Atmosphere, pages 38-39, 243, Gateway GCSE Physics, Oxford, OCR '']
:[https://www.amazon.co.uk/gp/product/0198359837/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0198359837&linkCode=as2&tag=nrjc-21&linkId=3c4229e8b023b2b60768e7ea2307cc6f ''Earth; Energy source, pages 226-227, Gateway GCSE Physics, Oxford, OCR '']
:[https://www.amazon.co.uk/gp/product/0198359837/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0198359837&linkCode=as2&tag=nrjc-21&linkId=3c4229e8b023b2b60768e7ea2307cc6f ''Earth; Gravitational force, pages 82, Gateway GCSE Physics, Oxford, OCR '']
:[https://www.amazon.co.uk/gp/product/0198359837/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0198359837&linkCode=as2&tag=nrjc-21&linkId=3c4229e8b023b2b60768e7ea2307cc6f ''Earth; Magnetic field, pages 120-121, 123, Gateway GCSE Physics, Oxford, OCR '']
:[https://www.amazon.co.uk/gp/product/0198359837/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0198359837&linkCode=as2&tag=nrjc-21&linkId=3c4229e8b023b2b60768e7ea2307cc6f ''Earth; Satellites, pages 240, Gateway GCSE Physics, Oxford, OCR '']
:[https://www.amazon.co.uk/gp/product/0198359837/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0198359837&linkCode=as2&tag=nrjc-21&linkId=3c4229e8b023b2b60768e7ea2307cc6f ''Earth; Structure of, pages 244-245, Gateway GCSE Physics, Oxford, OCR '']
==Beyond the Curriculum==
{{#ev:youtube|https://www.youtube.com/watch?v=HCDVN7DCzYE}}
{{#ev:youtube|https://www.youtube.com/watch?v=JGXi_9A__Vc}}