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Searching For Resources
At the moment, the Search Engine will search all of my websites so expect most hits to be for the older version of my website until I have completely transferred all the resources over.
I'm presently writing Topic 5 - Calculations and Topic 6 - Acids and Bases (working titles, may change).
At that point I'll be rebranding the App as N5ChemTutor1 and will start charging a modest fee for the App. If I achieve sufficient sales, then I will be able to start on N5ChemTutor2.
N5ChemTutor App (1.4.1) is under review and should appear on App store in next few days.
This included Topic 4 - Structure & Bonding
Good luck to those sitting Chemistry Exams on 8th May!
N5ChemTutor App (1.2.1) was launched on App store.
This included Topic 2 - Atomic Structure and Nuclear Chemistry
N5ChemTutor App (1.1.3) was launched on App store.
This included Topic 1 - Reaction Rates and Investigation Skills
KHS Assignment 2014
TASK:- To compare disposable (HYDROGEL) nappies with the other types available.
What materials are used to make the nappies?
Which nappies are best at absorbing water?
What are the economic/social/environmental impacts?
N5 Daybook KHS version
KHS - Nappy DebateDestination Green
KHS - Nappy Comparison DataOn this website, you will find a document titled "Model Lab Report" which includes data for some disposable nappies which can be compared with your results.
Nappy Comparison Report
Report (pdf version)
KHS - PracticalPractical Instructions (Modified)
KHS - Other Nappy Types
This video introduces you to some of the alternatives to disposable (hydrogel) nappies,
Go Real Nappies (html)
KHS - How Nappies Work
This video explains how disposable (hydrogel) nappies work.
YouTube Video (html)
KHS - How Nappies Are Made
This video explains how disposable (hydrogel) nappies are made.
YouTube Video (html)
An animated lesson on the Theory of Hydrogels pitched at the 'right level', straddling N5 and Higher Chemistry.
Super Absorbent Polymers (SWF)
The Science Behind the Oil Spills
Environmental Effects Of Oil Spills
Methods For Cleaning Oil Spills
Equipment Used to Clean Up Oil Spills
Oil Spills Webpage (html)
Very quotable overview of Hydrogels.
What are Hydrogels? (pdf)
Useful resource that considers potential hazards of using hydrogels in nappies.
BabyCentre WebPage (html)
A Catalyst article about hydrogels. Soft contact lenses, disposable nappies, hair gel and plant water crystals all make use of substances called hydrogels. These are polymers which have the unusual property of being able to absorb huge quantities of water. The article looks at the structure of hydrogels and their uses; there are also two experiments that can be carried on domestic products.
Catalyst Article (pdf)
Resource 7Activities adapted from educational materials developed by Middlesex University Teaching Resources (MUTR). Includes a useful fact Sheet.
An excellent resource providing a cost comparison between different types of nappies - with and without hydrogels. Good Tables & Charts.
Nappy Cost Comparison Charts(html)
Nappy Cost Comparison Charts(pdf)
Life Cycle Assessment of Disposable and Reusable Nappies in the UK by the Environment Agency. Not easy, but has Data Tables aplenty. Also has an 'unexpected' overall conclusion:
"There is no significant difference between any of the environmental impacts of the disposable, home use reusable and commercial laundry systems that were assessed. None of the systems studied is more or less environmentally preferable."
Environment Agency Report (pdf)
BBC Article on Report (html)
Updated (and much shorter) version of the report. Again, possibility of using some of the data (not easy) or linking to environmental impact.
Environment Agency Report 2 (pdf)
Some resources provided by another Teacher. Includes a shortened version of the Catalyst article (Resource 2), a guide to a suitable practical and an extended Pupils Guide. Password protected. Teachers should e-mail me for password.
Shortened Catalyst Article (pdf)
Hydrogel Practical (pdf)
N5 Student Guide (pdf)
Hydrogel polymers are long molecule chains that grab onto water molecules. Some can soak up as much as 500 times their weight in water! This superabsorbent characteristic makes hydrogel polymers useful in water conservation and in solving other environmental issues.
Hydrogels & Soil (pdf)
Berkeley Engineers And mentors (BEAM) Hydrogels Lesson Plan. Practicals and background information as well as various uses.
Hydrogels Lesson Plan (pdf)
Video showing the use of Hydrogel microneedles.
Hydrogel Microneedles (video)
Video showing the use of Hydrogels in the delivery of drugs within the body.
Hydrogel Drug Delivery (video)
Lovely video showing the interaction between sodium polyacrylate crystals and water in close-up.
An excellent resource covering just about every possible use of Super Absorbent Polymers (SAP). Well presented with some useful Data but not too detailed so reasonably concise as well.
SAP Showcase (pdf)
British Society of Soil Science 2004. Infl̄uence of sodium polyacrylate on the water-holding capacity of three different soils and effects on growth of wheat
Use in Soils (pdf)
Useful for those looking the use of hydrogels in the soil. Written by a young Texan, Megan (15), this was a winning essay in the 2009 Young Naturalists Awards. Some good tables of Data.
Application of Superabsorbent Polymers (html)
Download (Zip file) Moray Hydrogel Resources as posted on Glow (Feb 2014).
Moray Hydrogels (Glow)