AMpMon, 22 Jul 2013 07:22:39 -040022Monday 14, 2009 by Grade56neighbourhood blog
Following on from our science workshops last week, What have you been doing in Genius Hour This week?You may also like to comment about the workshops…
Category Yr 5/6 teachers | Tags: , genius hour
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The Vasa
Vasa
By Joel Rodin
By Joel
What is The
Vasa?
Old Swedish warship Built in Stockholm 1626-‐28
Length – 69 meters Armament – 64 guns Crew – 145 sailors, 300 soldiers
What happened ?
The ship foundered and sank aNer sailing less than a nauOcal mile (ca 2 km) into her maiden voyage in 1628
Why?
Unstable top heavy construcOon with 2 gun decks.
Sailed with gun ports open.
Tipped and water entered through the open gun ports causing it to sink.
The Vasa
today?
Found and salvaged aNer 333 years Displayed in museum with 29 million visitors since 1961
98% of the ship is original

Heat projects
1. Just because one object feels colder than the other, it doesn’t mean it is colder. It just means that it has fewer heat molecules. I got this from http://www.youtube.com/watch?v=hNGJ0WHXMyE
2. Heat is a source of energy! That’s why we feel hot when we run round the park! I got this from http://www.powermasters.com/heat_energy.html
3. When we touch a cold object, the heat from our warm hand flows into the colder one. http://www.sciencelearn.org.nz/Contexts/Fire/Science-Ideas-and-Concepts/Heat-energy
4. When a pencil is sharpened, it get up to 30 Celsius.
Really cool Jack. I enjoyed it.
How do smoke detectors work.
How they work
All smoke detectors consist of two basic parts: a sensor to sense the smoke and a very loud electronic horn to wake people up. Smoke detectors can run off of a 9-volt battery or 120-volt house current.
• Optical Smoke Detector
1: Optical chamber
2: Cover
3: Case moulding
4: Photodiode (detector)
5: Infrared LED
A bit of information about smoke detectors
Smoke detectors are one of those amazing inventions that, because of mass production, cost practically nothing. You can get a smoke detector for as little as $7. And while they cost very little, smoke d¬etectors save thousands of lives each year. In fact, it is recommended that every home have one smoke detector per floor.
Ah the reliable smoke detector, one of the last common uses for the good old 9 volt battery… along with garage door openers and remote control cars.
I am doing a word document table on the different stages of the dinosaur age and the era before the dinosaurs were made.
LZ 1
The first Zeppelin was invented by a German man by the name of Ferdinand von Zeppelin. Although LZ 1 (Luftschiff (airship) Zeppelin) finished in the year 1899, Ferdinand decided to test it in a years time. However unsuccessful, it was a amazing start. When it was unsuccessful, he was forced to take it apart. But five years later, LZ 1 was built again, and this time, although stronger, it still had faults, such as no fins, which made it hard to control. LZ 1 was 420 feet long, 81-1/2 in diameter, and contained approximately 399,000 cubic feet of hydrogen. The hydrogen, was contained in 17 different gas “bags” of rubberized fabric. Although genius, LZ 1 was overweight, it didn’t have stability from fins, so it was unreliable in tough weather, and a big loss of engine power and speed made it hard to control, even in next to no breeze.
A fascinating era in aeronautics. Interestingly there is a chance that Zeppelins will become popular once more as the Goodyear Blimp is set to make a change to the Goodyear Zeppelin (though maybe not in name). Part of the reasoning behind it is that they are quieter and easier to navigate. Check out this article on Popular Science: http://www.popsci.com.au/technology/goodyear-to-replace-its-blimps-with-zeppelins
The science of bowling a cricket ball
The muscles in bowling
The Pectorals
The Latissimus Dorsi
The Deltoids
The Trapezius
The Abdominals and Obliques
some more on powerpoint. can’t show