Mystery object entries
I have received some entries for this competition, but I’m not posting them on the blog until the closing date. This way other people can’t use your ideas. So don’t worry if you don’t see your answer online yet.
Science Outside the Square
Taking Science and enquiry that step further for Year 9 and 10 students
Mystery object
| The picture above shows part of a device based on scientific principles. What is it and briefly how does it work? A point for all correct entries from Year 9 and 10 KKC students for a correct answer, in their own words, by 7 March 2009. FIRST CORRECT ANSWER GAINS 3 POINTS. |
Make glowing water
| These clips show you two ways to make glowing water. If you’d like to try this out, bring it into school and you can look at it glow under my blacklight, (ultraviolet light).
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Dippy drinking bird
| Well done Kalum, Iain and Owen. It was indeed the high humidity, resulting in virtually zero evaporation, that caused the bird to stop. Aiming the fan at it forced evaporation to take place. So, a point to each of you. I’ve added a page to the blog - it’s called Competition Points 2009 - where you can check how many points you have earned at any one time. You can access the page at the top of this page. As a bonus to you three keen students, you can earn an extra point next time if you get someone else from your class, who has not previously entered, to enter the next competition. They’ll have to refer to you in their answer. |
Another question about the dippy drinking bird
This afternoon, my dippy drinking bird stopped working. It was hot, which should have caused the bird to go faster, and it was also raining and very humid. After a discussion with a couple of students, I aimed a fan at the bird and it started up again. Why?????
No $10 voucher this time, but every correct answer wins one point and 5 points earn you a prize.
Dippy drinking bird - the answer
Well done Kalum and Iain. Excellent answers from both of you, so I’m being a real softie and giving you both a canteen voucher - come and see me to claim it. I loved your enthusiasm. Now watch out for the next challenge.
Anyone who wants to see the answer to the question needs to check out the comments that Iain and Kalum posted.
Dippy drinking bird - win a $10 canteen voucher
How does this thing work? It’s actually not as simple as it looks. 9JOH and I talked today about how we would have the occasional decent prize for a well thought-out answer to a question.
So, to the first KKC Year 9 or 10 student who can tell me correctly, in their own words, how the dippy bird works, I’m offering a $10 canteen voucher. Click here to watch a video. Come and see me if you want to see my dippy bird in action.
Please don’t imagine I’ll be offering $10 vouchers on a regular basis, but I think this is quite a nice way to start the new school year.
Enter by adding a comment on this blog.
More on Julian Beever
Here’s another movie clip on Julian Beever’s chalk drawings. This one is a CBS news item, which includes a brief but really interesting interview with Beever. It also shows him creating a pavement work of art in New Orleans.
Work this out…
There are twenty people in an empty square room. Each person has full sight of the entire room and everyone in it. Where can you place an apple so that all but one person can see it?
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