Uploaded September 2023 | Updated September 2026, 7 hours ago
Find your 9s with PLUS. Click the link to try for free freesciencelessons.co.uk/modules/gcse-chemistry-1-triple
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In this video, we look at elements, compounds, mixtures and molecules. First we look at the idea of an element, using examples from the periodic table. I then show you the definition of a compound and what is meant by "fixed proportions". We then explore the definition of a mixture and the differences between mixtures and compounds. Finally, we look at what is meant by the word molecule and see how molecules can be elements or compounds.
This video is based on the AQA spec. This video may be appropriate for iGCSE / O Level Chemistry. Please consult your specification. The Amazon link above is an affiliate link. This provides a small commission which helps to support freesciencelessons. The cost remains the same to you. If you prefer not to use this, you can search Amazon for the Freesciencelessons workbooks.
Image credits:
Magnesium "commons.wikimedia.org/wiki/File:Magnesium-2.jpg
By Jurii (images-of-elements.com/magnesium.php) [CC BY 3.0 (creativecommons.org/licenses/by/3.0)], via Wikimedia Commons"
Sulfur "commons.wikimedia.org/wiki/File:Sulfur-sample.jpg
By Ben Mills [Public domain], from Wikimedia Commons"
Magnesium sulfide commons.wikimedia.org/wiki/File:Lithium_chloride.jpg
Find your 9s with PLUS. Click the link to try for free freesciencelessons.co.uk/modules/gcse-chemistry-1-triple
Teachers, to get PLUS for your school, email schools@freesciencelessons.co.uk
In this video, we look at elements, compounds, mixtures and molecules. First we look at the idea of an element, using examples from the periodic table. I then show you the definition of a compound and what is meant by "fixed proportions". We then explore the definition of a mixture and the differences between mixtures and compounds. Finally, we look at what is meant by the word molecule and see how molecules can be elements or compounds.
This video is based on the AQA spec. This video may be appropriate for iGCSE / O Level Chemistry. Please consult your specification. The Amazon link above is an affiliate link. This provides a small commission which helps to support freesciencelessons. The cost remains the same to you. If you prefer not to use this, you can search Amazon for the Freesciencelessons workbooks.
Image credits:
Magnesium "commons.wikimedia.org/wiki/File:Magnesium-2.jpg
By Jurii (images-of-elements.com/magnesium.php) [CC BY 3.0 (creativecommons.org/licenses/by/3.0)], via Wikimedia Commons"
Sulfur "commons.wikimedia.org/wiki/File:Sulfur-sample.jpg
By Ben Mills [Public domain], from Wikimedia Commons"
Magnesium sulfide commons.wikimedia.org/wiki/File:Lithium_chloride.jpg
