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See how well you know the positions of the first 20 elements. How quickly can you complete the jigsaw?
An alternative game:
As we’ve just been over Unit 1(a), here is an online course covering most of 1(a):
- Introducing Rates of Reaction
- The Effect of Surface Area
- The Effect of Concentration and Pressure
- The Effect of Temperature
- Enzymes in Industry
Can you spot the parts of Unit 1(a) that are missing from these units?
New year – time to remind you all about safety. Here’s a song to help.
This video is the same titration we are doing in the lab – but we don’t do the back titration at the end.
The Chemistry homework was to compare and contrast ionic and covalent bonding. Two pupils produced a musical, another produced this video. Enjoy!
The InQuizitor app combines question and answer sessions with gameplay rewards. It only costs £1.79.
Special offer – now only 59p!
“InQuizitor helps you game your way to exam success. Play curriculum based quizzes combined with some challenging mini games to make your study time a lot more fun and effective. Win bonuses by answering quickly and correctly, earn more game time and watch your scores increase as you hardwire vital exam information into your brain.”
We mentioned solution mining in class, but didn’t include much detail. Here is some more information:
As I watched Comic Relief on Friday, I realised 4CH31 had raised enough to restore the sight of a child and pay for another child to attend primary school for a whole year. 1CH42 raised enough to pay for two children to go to primary school for the next year. Well done. Read about Chep and Sunday here:
Plenty of people use Ventolin inhalers and I used to ensure the quality of the Salbutamol that goes into it. Here is a podcast from the Royal Society of Chemistry.
We’ve looked at thermosetting synthetic polymers and now here is a podcast about the first, Bakelite.
And here’s my favourite biology one:
The pH of rain at the school will be updated every Tuesday and is available from the following link:
Making Fats (the reverse process):
We’ve met a lot of functional groups in Unit 2, so here is a song to help us remember them all.
Higher chemistry candidates’ responses to practical test questions (or PPAs) were “very poorly done” last year, suggesting some of them had “no experience” of various experiments.
The assessors commented: “In some centres, the benefits of effective teaching and learning with respect to PPAs were clearly evident, with large numbers of candidates producing very sharply focused answers; in other centres, however, many answers still suggest that the candidates have absolutely no experience of the PPA.”
Schools were also advised to do more to prepare Higher pupils for problem- solving questions and those which required more detailed explanations. Candidates could also improve their grade through “more attention to the rote-learning of the chemical knowledge on the course”.
Pupils were also reminded of the need to use their calculators correctly, especially if brackets were involved.
See how well you manage to define ionic bonding.
Daniel Radcliffe sings the Elements Song
Here’s a flash animation showing addition polymerisation.
Review of the properties of oil, and what combustion, fractions and the properties of alkanes and alkenes are. This is an overview of Topics 5 and 6 (and may be useful as a reminder for Higher).
QI help us with our Higher Chemistry:
If a mole of moles were digging a mole of holes, what would you see?
At last – hydrogen bonding through the medium of song:
As we’ve been looking at the bonding and properties of water, here’s a recent podcast:
We’ve been looking at the structure of ice – here’s a game to help you remember how it all goes together.
The ice caps are melting, you have to rebuild them one water molecule at a time!
Waterfall is a simple, fun, and highly addictive game that teaches you about ice and nanoscience.
Why is he right to be afraid of the water?
Last night a hypnotist convinced me I was a dull grey malleable metal with an atomic number of 82.
I’m easily lead.
This animation looks at the differences between the three. When they talk about an octet of electrons, they mean a full outer shell.
The “E.N.D.” they refer to is electronegativity difference. If the difference in elcetronegativity is very small or zero, then you have a pure covalent bond. As the difference in elctrongativity increases, the bond gets more polar (e.g. HCl, ΔE.N. = 0.9) until you end up with pure ionic bonding (e.g. NaCl, ΔE.N. = 2.1).
I’ve changed the look to try to use more of the screen. If this doesn’t work for you, tell me about it by submitting a comment (comments will not appear on the blog).
As we near the end of Topic 11, here is a revision lesson you can work through at your own pace.
Here is a link to an animation that will take you through a Blast Furnace. This is worth looking at just for the fantastic accent.
Here is a tutorial with interactive flash animation for the formation of a covalent bond. I’d recommend pages 1-9 for everyone and the rest for those that want to understand it a little deeper.
We’ve just been over these and here are some interactive units to help you revise:
Once you’ve learnt all of the hazard symbols we did in class, how quickly can you identify the whole set:
Welcome to the new school year. I’ve tidied up last year’s posts and left a few of general interest.
Homework is listed in the homework tab above.