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Thursday 15 August 2019

Balloon Hovercraft

We have been learning how to write scientific reports. We did an experiment and created a Balloon Hovercraft.


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Balloon Hovercraft
QUESTION

How does a hovercraft hover?
HYPOTHESIS

I predict that the cd is going to spin on the table like a lawnmower.

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EQUIPMENT 
AND MATERIALS:
Cd, bottle lid, ballon. 
PROCEDURE:
Step 1: Using a hot glue gun glue the bottle cap over the CD hole.
Step 2: Blow up a balloon. When it is fully inflated twist the end so no air comes out.  
Step 3: Stretch the balloon over the end of the bottle cap. 
Step 4: Open up the cap and place the CD on the surface.  
Step 5: Untwist balloon and let go.
OBSERVATIONS/RESULTS:
I saw the balloon get smaller and smaller as the air was coming out and the disc moves around.  It slows down and then stops.

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CONCLUSION:
The air from the balloon creates a cushion of moving air between the disc and the CD and reduces the friction across the surface.

Thursday 8 August 2019

Maths Term 3


Speeches

Title: Speeches
Label: Writing, Speech

For the last two weeks we have been working on writing speeches.
My topic was Lego.
We had to present them in front of our class.
I think i was good.

Here is my speech.