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==Key Stage 3==
===Meaning===
'''Tidal''' is an [[Energy Resource|energy resource]] which uses [[tide]]s tides to generate electricity.
===About Tidal===
: '''Tidal''' is a [[Renewable Energy Resource|renewable energy resource]].
: '''Tidal''' has [[energy]] in the [[Gravitational Potential Energy Store|gravitational potential energy store]] of water that is being pulled by the [[The Moon|moons]] [[Gravity|gravitational]] pull.
: [[Tide]]s Tides happen twice a day. Once when the [[The Moon]] is directly overhead and once when the [[The Moon]] is on the opposite side of the [[Earth]].
===Power===
{| class="wikitable"
|}
: 1. As the [[tide]] changes water passes through the pipes in the [[tidal]] barrage.: 2. The water causes [[turbine]]s turbines to turn.: 3. The [[turbine]]s turbines spin a generator which makes [[electricity]].
====Advantages====
*Tidal height varies throughout the year.
*Damages habitats by not allowing the natural flow of the tides.
==Key Stage 4==
{{#ev:youtube|https://www.youtube.com/watch?v=7IM0fKIBGag}}
===Meaning===
'''Tidal''' is an [[Energy Resource|energy resource]] which uses tides to generate electricity.
===About Tidal===
: '''Tidal''' is a [[Renewable Energy Resource|renewable energy resource]].
: '''Tidal''' has [[energy]] in the [[Gravitational Potential Energy Store|gravitational potential energy store]] of water that is being pulled by the [[The Moon|moons]] [[Gravity|gravitational]] pull.
: Tides happen twice a day. Once when the [[The Moon]] is directly overhead and once when the [[The Moon]] is on the opposite side of the [[Earth]].
===Power===
{| class="wikitable"
|-
|[[File:TidalGenerator.png|center|600px]]
|}
: 1. As the tide changes water passes through the pipes in the [[tidal]] barrage.
: 2. The water causes turbines to turn.
: 3. The turbines spin a generator which makes [[electricity]].
====Advantages====
*Do not produce pollution.
*Very reliable (high tide occurs twice a day).
*No fuel costs.
*Power output can be varied by opening and closing sluice gates to control the water flow.
====Disadvantages====
*Cost to build is quite high.
*Prevent access to boats.
*Tidal height varies throughout the year.
*Damages habitats by not allowing the natural flow of the tides.
===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 ''Tidal energy, page 23, GCSE Physics, Hodder, AQA '']
:[https://www.amazon.co.uk/gp/product/1471851354/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1471851354&linkCode=as2&tag=nrjc-21&linkId=9012a0d354024419214fb3ad5ac44ba0 ''Tidal energy, page 278, GCSE Combined Science Trilogy 1, Hodder, 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 ''Tidal power, page 39, GCSE Physics; Third Edition, Oxford University Press, 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 ''Tidal power, pages 32-3, GCSE Physics; Student Book, Collins, AQA '']
====Edexcel====
:[https://www.amazon.co.uk/gp/product/1292120223/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1292120223&linkCode=as2&tag=nrjc-21&linkId=068ecf40278c32406a7f1c6e66751417 ''Tidal power, page 44, GCSE Physics, Pearson Edexcel '']