Inventions

__**Our topic this term is "Inventions and Inventors" **__

Our teacher set us the challenge to create an invention. Then we had to write a persuasive mini speech to advertise our product. We drew posters to advertise our inventions. Here are our mini speeches to promote our inventions. 

Aurora produced a video to promote her invention. The Amazing Computer Caterer. media type="file" key="Aurora.mp4" width="300" height="300"

Bloopers media type="file" key="Bloopers.mp4" width="300" height="300"

Our teacher set us a technological challenge. First we listened to the story "The Impossible Bridge" media type="file" key="The Impossible Bridge.wav" width="300" height="50"

Then, in teams we had to build a bridge strong enough to carry a car. We began the challenge using construction equipment. In our team we discussed how we were going to tackle the challenge and then tried different designs. 

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<span style="color: #260505; font-family: 'Comic Sans MS',cursive; font-size: 140%; line-height: 0px; overflow: hidden;"> <span style="color: #260505; font-family: 'Comic Sans MS',cursive; font-size: 140%; line-height: 27px;">To extend the activity one of the groups were challenged to design a bridge using only paper.

__**<span style="color: #260505; font-family: 'Comic Sans MS',cursive; font-size: 140%; line-height: 27px;">Our Inventor WebQuest **__ <span style="color: #260505; font-family: 'Comic Sans MS',cursive; font-size: 140%; line-height: 0px; overflow: hidden;">

Have you ever heard of a ferromagnetic metal? That is a type of metal that responds strongly to magnetic fields. There are only a few of them - some are common metals, like iron, cobalt, and nickel. Others are very rare, and have funny names like gadolinium, Terbium, Dysprosium, and Holmium. Anyway, almost all magnets are made out of these metals or mixes (alloys) of them. By the way, a nickel (the coin) is made out of 3/4 copper and only 1/4 nickel - this mixture is not very magnetic at all, but a pure piece of nickel would be valuable.