By: Cheung Yu Hin

P.1 -------------------- Purpose

P.2 -------------------- Hypothesis

P.3 -------------------- Materials I used

P.4 -------------------- Procedure

P.5 -------------------- Observations

P.6 -------------------- Conclusions

P.7 -------------------- Big Idea

To Test how draughty my house was.

I think that my house might have a few holes that draught wind might come in, because it’s quite cold at my house in winter, except if you’re under a bed cover.

1. Prepare all the materials needed.

2. Draw out a piece of cling film of 14cm X 20cm large with your marker.

3. Cut out the piece of cling film that you had drawn out.

4. Stick the piece of cling film on the chopstick with scotch tape.

5. Hold the draught tester near windows and doors, sometimes walls.

6. Observe what happens.

This is the balcony.

It’s blowing quite rapidly.

This is a window in the living room.

The cling film is also blowing.

This is the living room wall.

The Cling film is slightly moving.

This is a camouflaged door to

the bedrooms.

The cling film is not moving.

This is the front door.

The cling film is also blowing quite strongly.

How Draught Comes Into Your House

DoorsBalconies / WindowsWallsFloorRoof

32% 48%

9%3%8%

Here are the results……

Draughts are like a wind energy, so a when the wind blows the turbine, and the blades will turn and make electricity. Wind turbines can be used to generate large amounts of electricity in wind farms both onshore and offshore. It is also a device that converts kinetic energy from the wind into mechanical energy.

But how does it look like inside the turbine? Here It is!

Now a short video about wind turbines.

Thank You For Watching!By: Cheung Yu Hin

7th February 2012