Future Problem Solving - 9JOH

Your booklets must be finished up until the end of Stage 3 by the end of Wednesday  1 April. Lunchtime sessions will be held this week to help you. In between, do help eachother. Email me for any help by posting a comment.

All the best, Mrs J.

Koura Kraze continued

I’m about to send in our entries. How about some things to add a bit of fun? One point each for:

  1. Best koura joke
  2. Weirdest koura fact
  3. Most intersting koura question
  4. Best koura haiku
  5. Best koura crossword clue

Koura Kraze 2009

Today, Sunday 22 March 2009, is World Water Day. Happening concurrently is March Monitoring Month and Koura Kraze.

Here are three very dedicated Year 9 students today, trying to find and identify koura to help with their monitoring and conservation. It was great fun. We also have lots of still photos to support out entry into Koura Kraze 2009. I urge you to watch our little movie until the end, where you will see four of the 12 koura we found.  Well done Morgan, Savana and Courtney.

Future Problem Solving

Identify two issues from the Olympics scenario that you might have problems with, but which don’t actually challenge anyone else. Do they exist? Why or why not? Usual points apply.

Would you like to win a notebook computer?

Check this out. They want to know how we could use ICT better in our Science class. See me if you want some help. You have until 27 March to enter.

Why does ice float?

When a liquid freezes, the particles move closer together and the resulting solid becomes more dense. When water freezes, the opposite happens. Why? Earn some points.

iceberg.jpg

Mystery Object

image001.jpg

Open to all Year 9 and 10 students, plus staff too. An answer earns you a point; the first correct answer earns you 3 points, and 5 points earns you an individual ice cream of your choice from the corner shop. You might need to be a bit ancient or have ancient friends to get this one right.

What is the cylinder in the device being raised towards the aeroplane?

Hot Air Engines

OK, here’s another one. Those of you in my classes will have noticed I have a new toy. It can be powered by a Bunsen burner (or any other heating device) to make a fan turn. In other words we are turning thermal energy into kinetic energy. If you haven’t seen it working, just pop in and ask me to show you.This device is commonly known by two names - hot air engine or Stirling engine. How does it work? No, it is not a steam engine - there is no water involved.

This is a hard one, so 5 points to the first understandable correct answer.

What did Mum do?

cartoonkids.jpg

See if you can earn a point or three (if first correct), by answering this practical puzzle. There may well be more than one answer.

Sally and her little brother Billy were fighting as usual. Their mother was tired of the pair of them and decided to punish them. Her clever punishment was to make them stand on the same piece of newspaper in such a way that they couldn’t touch each other. She did not cut or reshape her page of the BOP Times in any way.

How did she accomplish this?

Mystery object

Iain’s latest post wins. When the ambient temperature changes, the density of the clear liquid in the cylinder changes - ie if the temperature increases, the particles in the clear liquid move further apart, reducing in density. The glass bulbs all have a different density. Those with a low density will move upwards when the density of the liquid around them decreases. Get it? I’ll show you with my Gallileo thermometer next week. In the meantime, you’ve all won points, both for first, second, and any other attempts. Well done! Check out the points table to see where you are at now.

 I’ll post another question sometime over the weekend.