Uploaded April 2024 | Updated September 2026, 4 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 start looking at giant covalent molecules. First we explore what is meant by giant covalent molecules. We then look at the structure and properties of diamond. This includes why diamond is a hard substance with a very high melting and boiling point, and why diamond cannot conduct electricity. We explain this in terms of the covalent bonding in diamond. We then look at the properties of the giant covalent substance silicon dioxide.
Properties of small covalent molecules : youtu.be/u_KR0UaZFkY
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:
Diamond
commons.wikimedia.org/wiki/File:Brillanten.jpg
Mario Sarto, CC BY-SA 3.0 creativecommons.org/licenses/by-sa/3.0/, via Wikimedia Commons
Silica
commons.wikimedia.org/wiki/File:White_silica_gel.jpg#file
Public domain
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 start looking at giant covalent molecules. First we explore what is meant by giant covalent molecules. We then look at the structure and properties of diamond. This includes why diamond is a hard substance with a very high melting and boiling point, and why diamond cannot conduct electricity. We explain this in terms of the covalent bonding in diamond. We then look at the properties of the giant covalent substance silicon dioxide.
Properties of small covalent molecules : youtu.be/u_KR0UaZFkY
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:
Diamond
commons.wikimedia.org/wiki/File:Brillanten.jpg
Mario Sarto, CC BY-SA 3.0 creativecommons.org/licenses/by-sa/3.0/, via Wikimedia Commons
Silica
commons.wikimedia.org/wiki/File:White_silica_gel.jpg#file
Public domain
