- 2014 National 5 Chemistry Past Paper To try once you are fairly well through 4th year Chemistry doing National 5. http://www.sqa.org.uk/pastpapers/papers/papers/2014/N5_Chemistry_all_2014.pdf
- and the marking instructions for 2014 National 5 Chemistry http://www.sqa.org.uk/pastpapers/papers/instructions/2014/mi_N5_Chemistry_all_2014.pdf
National 5 Chemistry Specimen Paper
Lots of exercises to try at http://www.carluke-highschool.org.uk/learning-teaching/science/chemistry/chemistry-n5
Chemistry National 5 Data Booklet
If you dont have a copy of this to keep then print this out for your own use :
Here is what you really need to know for National 5 Chemistry - Course Support Notes-
USEFUL Revision -
Some PDF Files to try for Revision - print out and try and re-arrange to make these correct :
There are 3 Units in National 5 :
Unit 1 : Chemical Changes and Structures
Unit 2 : Chemistry and Society
Unit 3 : Nature's Chemistry
Unit 1 : Chemical Changes and Structures
A Fabulous Illustrated Periodic Table that you can Print Out !
A fun cartoon style Periodic Table Song on YouTube
very funny - watch at least some of it !
Good to know at least the first 20 elements for National 5 plus some of the transition metals which are found in the middle section, such as Iron, Copper, Gold etc.
Photographs of Each Element Periodic Table
This periodic table from RGB Research and Theodore Gray in England has a photograph of each element - click on each one to find out more about it -
BBC Elements Podcasts
Find out about the Elements in these fantastic podcasts from the BBC - they are quite long though at half an hour - but great if you are interested to find out more - http://www.bbc.co.uk/programmes/p01rcrn6/episodes/downloads
Fun Chemistry BlockBusters Game
This used to be a big favourite TV show when I was young ! And I used to make up Science Blockbuster questions for the children on the last day of school - however here is an even better online Chemistry example. Well done to the people who made this !
This is probably better to try once you've at least got to the end of 3rd Year Chemistry so you've a chance to get some of the answers right ! Try on your own or compete against a friend !
Alkali Metals with Dara O'Brien
A very quick video of some alkali metals
Alkali Metals with Richard Hammond and Brainiac TV programme
Noble Gases - making a Neon sign - http://www.bbc.co.uk/news/business-35885539
Ionic and Covalent Bonding
BBC Bitesize - Ionic and Covalent -
Covalent network substances have large networks and if they are very large they can be seen as crystals such as this very large opal crystal of Silicon Dioxide that was found :
or these ones :
Chemical Formulas - Mind Map - Reminders
Chemical Formulas, Protons, Atoms etc - quiz to try with answers
Acids and Bases
Further details - http://www.bbc.co.uk/bitesize/ks3/science/chemical_material_behaviour/acids_bases_metals/revision/3/
Reaction of Copper Carbonate with Acid - and collecting the gas given off - do you know which gas will be given off ? https://www.youtube.com/watch?v=65taHAKiPyo
Acid / Alkali Neutralisation Calculation - based on a question from National 5 2014 Past Paper
This is one way to do this calculation - there are other methods you could use to calculate it as well
Copper Chloride Electrolysis
A German video - but you'll get the idea !
Copper Sulphate Electrolysis
A nice, quick electrolysis video showing Copper appearing at the negative electrode and bubbles of oxygen gas appearing at the positive electrode :
UNIT 2 Nature's Chemistry
Sugar Cane - production of Glucose - Production of Ethanol
Biofuels - BP new developments
... need to find my old link to this ....
a good summary sheet of what you should know about hydrocarbons from Lesmahagow school :
Hydrocarbons - some online quizzes to try :
(although these are from GCSE, they are mostly the same as what you need at National 5)
A Hydrocarbons Crossword ! - click to expand ! (there is a small mistake in crossword I need to fix ! Sorry !- but you can still try most of it !)
An Oil Refinery Game
Become an Oil Tycoon with this slightly silly game but has a few interesting questions about Carbon chemistry and Hydrocarbons. http://www.rsc-oilstrike.org/
Hydrogen Fuel Cell Animation
Really nice animation of a Hydrogen fuel cell - the advantage of these are that the car only gives out water !
Unit 3 - Chemistry in Society -
A mind map to remind you of some polymer basics :
Plastics / Polymers
Natural and Synthetic polymers
Polyethene - polypropylene - Kevlar - starch - proteins - polyester - addition polymers and condensation polymers
Really good 5 minute video about Bakelite - a really early thermosetting plastic - http://www.bbc.co.uk/education/clips/zdgb4wx
Ethene to polythene - 2 minute video - first minute or so is good showing polythene appearing http://www.bbc.co.uk/education/clips/zt7qxnb
Rubber - vulcanising rubber - invented by Charles Goodyear, whose name you still see on tyres today, many years later - http://www.bbc.co.uk/education/clips/z74c87h
Some plastics described :
Extraction of Metals :
Reactivity Series of Metals - To find reactivity series of metals if you have forgotten it, you can look at the table of Reductions in the Data Booklet. The reactive metals are towards the top of that table, unreactive ones at the bottom.
- Reactive metals ie from Potassium down to Aluminium must be extracted from their ore using electricity (see video for Aluminium below)
- Slightly less reactive metals eg Zinc down to Silver need to be extracted by heat, usually from Carbon burning (see Blast Furnace animation below for extraction of Iron)
- And Gold is unreactive and can be found unreacted eg lumps of gold can be found in rivers or in rocks. This is why gold is valuable for jewellery !
Displacement reactions - Zinc reacting with Copper Sulphate solution - can you predict what happens when these students add fragments of zinc metal to copper sulphate solution ?
Blast Furnace Animation
Iron is extracted using the blast furnace
An excellent video from the Royal Society of Chemistry showing an Aluminium plant in Wales and how the aluminium is extracted - how much aluminium do you think they make each day here ?!?
A list of some common alloys at bottom of page here :
Cars may have alloy wheels - these are lighter than steel wheels.
|Alloy wheels - made from an alloy of aluminium + small quantities of various other metals|
An alloy is used as aluminium on its own is not particularly strong so some other metals are mixed with it.
Here is a video showing alloy wheels being made! https://www.youtube.com/watch?v=LCMs-7K8nLk
Some facts and an interesting short video from the Discover Channel about Recycling Aluminium and explaining why its good for the environment :
and all sorts of interesting facts about recycling listed here:
aluminium recycling facts : http://www.businesswaste.co.uk/uks-2015-aluminium-recycling-rate-higher-than-expected/#.V8R_RJiDGko
This is interesting (and perhaps a bit dangerous too !!) but shows how they got lead in Tudor times to make stained glass and roofs for a Tudor Monastery.
Unfortunately the link is no longer active - so you may have to borrow or buy the DVD - I think its Series 1 Episode 4 ....
If you don't want to watch the whole hour, the lead extraction bits are at the following times :
1.33 - 4.09
6.30 - 10.00
11.57 - 15.54
17.49 - 20.50
23.33 - 27.27
(and then it carries on for a few minutes after that to show it being used to make a stained glass so you might find that of interest too)
Mercury Extraction - heat alone
There can be a human cost in the extraction and mining of metals - eg children are involved in mining and if its mercury that is involved, it is poisonous.
To find out more : http://www.hrw.org/sites/default/files/reports/mali1211_forinsertWebUpload_0.pdf
some interesting videos
Short Quiz about the Haber Process :
Here is a photograph of a Technetium 99 generator for medical scanning.
Technetium -99m is the most widely used isotope for medical scanning. It has a very short half life of only 6 hours, and must be created as needed. This also means it quickly disappears from the patient's body. This generator houses a radioactive isotope of molybdenum, immersed in saline solution. This decays continuously to technetium-99m, which passes into the solution, ready for medical use. The molybdenum has to be replaced weekly, as it also has a short half-life, of only 2.7 days, and is obtained from special nuclear reactors optimized for radioisotope production.
Interesting BBC link to information about Technetium being used for bone scans and also how other radionuclides are used in Medicine :
Using Carbon dating and other radioactive methods in Archaeology - interesting article from the Smithsonian Institute:
BBC Bitesize on radiation / nuclear with a nice diagram of how carbon dating works: