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	<id>https://keystagewiki.com/index.php?action=history&amp;feed=atom&amp;title=Theory</id>
	<title>Theory - Revision history</title>
	<link rel="self" type="application/atom+xml" href="https://keystagewiki.com/index.php?action=history&amp;feed=atom&amp;title=Theory"/>
	<link rel="alternate" type="text/html" href="https://keystagewiki.com/index.php?title=Theory&amp;action=history"/>
	<updated>2026-05-04T00:10:34Z</updated>
	<subtitle>Revision history for this page on the wiki</subtitle>
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	<entry>
		<id>https://keystagewiki.com/index.php?title=Theory&amp;diff=21626&amp;oldid=prev</id>
		<title>Ellen References at 16:16, 20 December 2019</title>
		<link rel="alternate" type="text/html" href="https://keystagewiki.com/index.php?title=Theory&amp;diff=21626&amp;oldid=prev"/>
		<updated>2019-12-20T16:16:50Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table class=&quot;diff diff-contentalign-left&quot; data-mw=&quot;interface&quot;&gt;
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				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #222; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #222; text-align: center;&quot;&gt;Revision as of 16:16, 20 December 2019&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l34&quot; &gt;Line 34:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 34:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;:[https://www.amazon.co.uk/gp/product/1782948120/ref=as_li_tl?ie=UTF8&amp;amp;camp=1634&amp;amp;creative=6738&amp;amp;creativeASIN=1782948120&amp;amp;linkCode=as2&amp;amp;tag=nrjc-21&amp;amp;linkId=dedef775c6a43dbb0a609441525adac0 ''Theories, pages 2, 3, GCSE Biology, CGP, Edexcel  '']&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;:[https://www.amazon.co.uk/gp/product/1782948120/ref=as_li_tl?ie=UTF8&amp;amp;camp=1634&amp;amp;creative=6738&amp;amp;creativeASIN=1782948120&amp;amp;linkCode=as2&amp;amp;tag=nrjc-21&amp;amp;linkId=dedef775c6a43dbb0a609441525adac0 ''Theories, pages 2, 3, GCSE Biology, CGP, Edexcel  '']&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;:[https://www.amazon.co.uk/gp/product/1782948163/ref=as_li_tl?ie=UTF8&amp;amp;camp=1634&amp;amp;creative=6738&amp;amp;creativeASIN=1782948163&amp;amp;linkCode=as2&amp;amp;tag=nrjc-21&amp;amp;linkId=0fdbfd5dd397d6e24a9dfb250f08587f ''Theories, pages 2, 3, GCSE Physics, CGP, Edexcel '']&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;:[https://www.amazon.co.uk/gp/product/1782948163/ref=as_li_tl?ie=UTF8&amp;amp;camp=1634&amp;amp;creative=6738&amp;amp;creativeASIN=1782948163&amp;amp;linkCode=as2&amp;amp;tag=nrjc-21&amp;amp;linkId=0fdbfd5dd397d6e24a9dfb250f08587f ''Theories, pages 2, 3, GCSE Physics, CGP, Edexcel '']&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt; &lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt; &lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;====OCR====&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt; &lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;:[https://www.amazon.co.uk/gp/product/1782945695/ref=as_li_tl?ie=UTF8&amp;amp;camp=1634&amp;amp;creative=6738&amp;amp;creativeASIN=1782945695&amp;amp;linkCode=as2&amp;amp;tag=nrjc-21&amp;amp;linkId=ceafcc80bcad6b6754ee97a0c7ceea53 ''Theories, page 1, Gateway GCSE Combined Science; The Revision Guide, CGP, OCR '']&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt; &lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;:[https://www.amazon.co.uk/gp/product/1782945687/ref=as_li_tl?ie=UTF8&amp;amp;camp=1634&amp;amp;creative=6738&amp;amp;creativeASIN=1782945687&amp;amp;linkCode=as2&amp;amp;tag=nrjc-21&amp;amp;linkId=9a598e52189317a20311d7a632747bc9 ''Theories, page 2, Gateway GCSE Physics; The Revision Guide, CGP, OCR '']&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Ellen References</name></author>
		
	</entry>
	<entry>
		<id>https://keystagewiki.com/index.php?title=Theory&amp;diff=20684&amp;oldid=prev</id>
		<title>Ellen References at 14:44, 29 November 2019</title>
		<link rel="alternate" type="text/html" href="https://keystagewiki.com/index.php?title=Theory&amp;diff=20684&amp;oldid=prev"/>
		<updated>2019-11-29T14:44:26Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table class=&quot;diff diff-contentalign-left&quot; data-mw=&quot;interface&quot;&gt;
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				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #222; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #222; text-align: center;&quot;&gt;Revision as of 14:44, 29 November 2019&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l29&quot; &gt;Line 29:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 29:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;:[https://www.amazon.co.uk/gp/product/1782946381/ref=as_li_tl?ie=UTF8&amp;amp;camp=1634&amp;amp;creative=6738&amp;amp;creativeASIN=1782946381&amp;amp;linkCode=as2&amp;amp;tag=nrjc-21&amp;amp;linkId=5ec5fc3f6429e30c1d9ab9bca2bccf93 ''Theories, pages 2, 3, GCSE Combined Science Trilogy; Biology, CGP, AQA '']&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;:[https://www.amazon.co.uk/gp/product/1782946381/ref=as_li_tl?ie=UTF8&amp;amp;camp=1634&amp;amp;creative=6738&amp;amp;creativeASIN=1782946381&amp;amp;linkCode=as2&amp;amp;tag=nrjc-21&amp;amp;linkId=5ec5fc3f6429e30c1d9ab9bca2bccf93 ''Theories, pages 2, 3, GCSE Combined Science Trilogy; Biology, CGP, AQA '']&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;:[https://www.amazon.co.uk/gp/product/1782945970/ref=as_li_tl?ie=UTF8&amp;amp;camp=1634&amp;amp;creative=6738&amp;amp;creativeASIN=1782945970&amp;amp;linkCode=as2&amp;amp;tag=nrjc-21&amp;amp;linkId=a120d24dcc7cc7a58192069a3aafc1d2 ''Theories, pages 2, 3, GCSE Physics; The Complete 9-1 Course for AQA, CGP, AQA '']&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;:[https://www.amazon.co.uk/gp/product/1782945970/ref=as_li_tl?ie=UTF8&amp;amp;camp=1634&amp;amp;creative=6738&amp;amp;creativeASIN=1782945970&amp;amp;linkCode=as2&amp;amp;tag=nrjc-21&amp;amp;linkId=a120d24dcc7cc7a58192069a3aafc1d2 ''Theories, pages 2, 3, GCSE Physics; The Complete 9-1 Course for AQA, CGP, AQA '']&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt; &lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt; &lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;====Edexcel====&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt; &lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt; &lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;:[https://www.amazon.co.uk/gp/product/1782948120/ref=as_li_tl?ie=UTF8&amp;amp;camp=1634&amp;amp;creative=6738&amp;amp;creativeASIN=1782948120&amp;amp;linkCode=as2&amp;amp;tag=nrjc-21&amp;amp;linkId=dedef775c6a43dbb0a609441525adac0 ''Theories, pages 2, 3, GCSE Biology, CGP, Edexcel  '']&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt; &lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;:[https://www.amazon.co.uk/gp/product/1782948163/ref=as_li_tl?ie=UTF8&amp;amp;camp=1634&amp;amp;creative=6738&amp;amp;creativeASIN=1782948163&amp;amp;linkCode=as2&amp;amp;tag=nrjc-21&amp;amp;linkId=0fdbfd5dd397d6e24a9dfb250f08587f ''Theories, pages 2, 3, GCSE Physics, CGP, Edexcel '']&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Ellen References</name></author>
		
	</entry>
	<entry>
		<id>https://keystagewiki.com/index.php?title=Theory&amp;diff=19728&amp;oldid=prev</id>
		<title>Ellen References at 19:33, 13 November 2019</title>
		<link rel="alternate" type="text/html" href="https://keystagewiki.com/index.php?title=Theory&amp;diff=19728&amp;oldid=prev"/>
		<updated>2019-11-13T19:33:34Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table class=&quot;diff diff-contentalign-left&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
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				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #222; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #222; text-align: center;&quot;&gt;Revision as of 19:33, 13 November 2019&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l16&quot; &gt;Line 16:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 16:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;: In the public a [[theory]] is often no better than a guess.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;: In the public a [[theory]] is often no better than a guess.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;: In science a [[theory]] is backed up by [[Scientific Evidence|scientific evidence]] which can be [[repeatable|repeated]] and [[reproducible|reproduced]] and that [[Scientific Theory|scientific '''theory''']] has stood against multiple attempts to prove it wrong, which have all failed, suggesting the [[Scientific Theory|scientific '''theory''']] is likely to be true.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;: In science a [[theory]] is backed up by [[Scientific Evidence|scientific evidence]] which can be [[repeatable|repeated]] and [[reproducible|reproduced]] and that [[Scientific Theory|scientific '''theory''']] has stood against multiple attempts to prove it wrong, which have all failed, suggesting the [[Scientific Theory|scientific '''theory''']] is likely to be true.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt; &lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt; &lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;===References===&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt; &lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;====AQA====&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt; &lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt; &lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;:[https://www.amazon.co.uk/gp/product/1471851354/ref=as_li_tl?ie=UTF8&amp;amp;camp=1634&amp;amp;creative=6738&amp;amp;creativeASIN=1471851354&amp;amp;linkCode=as2&amp;amp;tag=nrjc-21&amp;amp;linkId=9012a0d354024419214fb3ad5ac44ba0 ''Theories, changes over time, pages 145-6, GCSE Combined Science Trilogy 1, Hodder, AQA '']&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt; &lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;:[https://www.amazon.co.uk/gp/product/1782945563/ref=as_li_tl?ie=UTF8&amp;amp;camp=1634&amp;amp;creative=6738&amp;amp;creativeASIN=1782945563&amp;amp;linkCode=as2&amp;amp;tag=nrjc-21&amp;amp;linkId=9a1d023a374038e6072f33c4f3cf808b ''Theories, page 1, GCSE Biology; The Revision Guide, CGP, AQA '']&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt; &lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;:[https://www.amazon.co.uk/gp/product/1782945962/ref=as_li_tl?ie=UTF8&amp;amp;camp=1634&amp;amp;creative=6738&amp;amp;creativeASIN=1782945962&amp;amp;linkCode=as2&amp;amp;tag=nrjc-21&amp;amp;linkId=476bb5c8d1dfb5c08ac81b6d4d1c98d8 ''Theories, page 2, GCSE Chemistry, CGP, AQA '']&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt; &lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;:[https://www.amazon.co.uk/gp/product/1782945571/ref=as_li_tl?ie=UTF8&amp;amp;camp=1634&amp;amp;creative=6738&amp;amp;creativeASIN=1782945571&amp;amp;linkCode=as2&amp;amp;tag=nrjc-21&amp;amp;linkId=9e29fad914244909903e5e93f8a01d257 ''Theories, page 2, GCSE Chemistry; The Revision Guide, CGP, AQA '']&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt; &lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;:[https://www.amazon.co.uk/gp/product/178294639X/ref=as_li_tl?ie=UTF8&amp;amp;camp=1634&amp;amp;creative=6738&amp;amp;creativeASIN=178294639X&amp;amp;linkCode=as2&amp;amp;tag=nrjc-21&amp;amp;linkId=51599bb45a2bfaf7c1b6a978b2ca2616 ''Theories, page 2, GCSE Combined Science Trilogy; Chemistry, CGP, AQA '']&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt; &lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;:[https://www.amazon.co.uk/gp/product/1782946403/ref=as_li_tl?ie=UTF8&amp;amp;camp=1634&amp;amp;creative=6738&amp;amp;creativeASIN=1782946403&amp;amp;linkCode=as2&amp;amp;tag=nrjc-21&amp;amp;linkId=32a0abb60dff015b15b50e9b1d7b4644 ''Theories, pages 1, 2, GCSE Combined Science Trilogy; Physics, CGP, AQA '']&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt; &lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;:[https://www.amazon.co.uk/gp/product/1782945954/ref=as_li_tl?ie=UTF8&amp;amp;camp=1634&amp;amp;creative=6738&amp;amp;creativeASIN=1782945954&amp;amp;linkCode=as2&amp;amp;tag=nrjc-21&amp;amp;linkId=100574c08fbbb64318256eb79ed61a76 ''Theories, pages 2, 3, GCSE Biology, CGP, AQA '']&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt; &lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;:[https://www.amazon.co.uk/gp/product/1782946381/ref=as_li_tl?ie=UTF8&amp;amp;camp=1634&amp;amp;creative=6738&amp;amp;creativeASIN=1782946381&amp;amp;linkCode=as2&amp;amp;tag=nrjc-21&amp;amp;linkId=5ec5fc3f6429e30c1d9ab9bca2bccf93 ''Theories, pages 2, 3, GCSE Combined Science Trilogy; Biology, CGP, AQA '']&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt; &lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;:[https://www.amazon.co.uk/gp/product/1782945970/ref=as_li_tl?ie=UTF8&amp;amp;camp=1634&amp;amp;creative=6738&amp;amp;creativeASIN=1782945970&amp;amp;linkCode=as2&amp;amp;tag=nrjc-21&amp;amp;linkId=a120d24dcc7cc7a58192069a3aafc1d2 ''Theories, pages 2, 3, GCSE Physics; The Complete 9-1 Course for AQA, CGP, AQA '']&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Ellen References</name></author>
		
	</entry>
	<entry>
		<id>https://keystagewiki.com/index.php?title=Theory&amp;diff=10935&amp;oldid=prev</id>
		<title>NRJC: Created page with &quot;==Key Stage 3== ===Meaning=== A theory may refer to a belief or idea a person has or it may refer to a scientific theory which is a set of scientific...&quot;</title>
		<link rel="alternate" type="text/html" href="https://keystagewiki.com/index.php?title=Theory&amp;diff=10935&amp;oldid=prev"/>
		<updated>2019-03-22T09:41:02Z</updated>

		<summary type="html">&lt;p&gt;Created page with &amp;quot;==Key Stage 3== ===Meaning=== A &lt;a href=&quot;/index.php/Theory&quot; title=&quot;Theory&quot;&gt;theory&lt;/a&gt; may refer to a belief or idea a person has or it may refer to a &lt;a href=&quot;/index.php/Scientific_Theory&quot; title=&quot;Scientific Theory&quot;&gt;scientific theory&lt;/a&gt; which is a set of scientific...&amp;quot;&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;==Key Stage 3==&lt;br /&gt;
===Meaning===&lt;br /&gt;
A [[theory]] may refer to a belief or idea a person has or it may refer to a [[Scientific Theory|scientific theory]] which is a set of scientific facts linked together to [[explain]] an [[observation]].&lt;br /&gt;
&lt;br /&gt;
===About Theories===&lt;br /&gt;
: The word [[theory]] means something very different in the public than it does in [[science]].&lt;br /&gt;
: In the public a [[theory]] is often no better than a guess.&lt;br /&gt;
: In science a [[theory]] is backed up by [[Scientific Evidence|scientific evidence]] which has stood against multiple attempts to prove it wrong, which have all failed, suggesting the [[Scientific Theory|scientific '''theory''']] is likely to be true.&lt;br /&gt;
&lt;br /&gt;
==Key Stage 4==&lt;br /&gt;
===Meaning===&lt;br /&gt;
A [[theory]] may refer to a belief or idea a person has or it may refer to a [[Scientific Theory|scientific theory]] which is a set of scientific facts linked together to [[explain]] an [[observation]].&lt;br /&gt;
&lt;br /&gt;
===About Theories===&lt;br /&gt;
: The word [[theory]] means something very different in the public than it does in [[science]].&lt;br /&gt;
: In the public a [[theory]] is often no better than a guess.&lt;br /&gt;
: In science a [[theory]] is backed up by [[Scientific Evidence|scientific evidence]] which can be [[repeatable|repeated]] and [[reproducible|reproduced]] and that [[Scientific Theory|scientific '''theory''']] has stood against multiple attempts to prove it wrong, which have all failed, suggesting the [[Scientific Theory|scientific '''theory''']] is likely to be true.&lt;/div&gt;</summary>
		<author><name>NRJC</name></author>
		
	</entry>
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