This powerpoint presentation describes an experiment conducted by Hillary Belen Chua to test for drafts in her house. She used a homemade draft tester made of cling film, tape and a pencil to test different areas like doors and windows. Her hypothesis that the main door and window 1 would be draftiest was partially correct, as window 1 showed a strong draft while the main door only a soft one. She learned that wind can sneak in through small cracks and affect indoor temperatures.

1. THIS POWERPOINT IS BY
HILLARY BELEN CHUA IN 5R .
Copyright Reserved® Published 2012

2. 1. Purpose
2. Hypothesis
3. Materials I Used
4. Procedure
5. Results and Observations
6. Conclusion
7. Small Glossary
8. Big Idea

3. I want to do this project because I want to see if
my house is draughty. Also, I want to know how
powerful and meticulous wind is that makes it go
through draughts at home. I bet this project is
going to be really fun and exciting!

4. I think our house is really draughty because I
always feel cold even though we had shut the
doors and windows tightly. So I think the draught
tester will be blown really hardly. Also, I think
that the main door and Window 1 will be blown
really hard.

5.  14cm x 20cm cling film
 Pencil
 Tape
 Scissors
 Ruler
It has really easy materials!

6. 1) Spread out your materials first so it won’t be too messy.
2) Measure the cling film in 14cm x 20cm. Then you cut it in that size.
3) Get the pencil and place it on the top of the sheet of cling film.
4) Using the cling film, roll the pencil. Don’t roll it too much, a bit is
enough.
5) Cut the tape in small pieces.
6) Tape the pencil on the cling film and you’re done.

7. The main door was blown The window was blown
softly. much stronger than the
main door.

8. OBJECT RESULTS
Main Door Blown softly. (wind going out.)
Blown much stronger then the main door.
Window 1
(wind going out.)
Window 2 No wind.
Window 3 No wind.
Window 4 Blown softly. (wind coming in.)

9. My hypothesis was mostly wrong. This experiment isn’t fun
or exciting at all and the main door was blown much softly
than I anticipated. But I was right that Window 1 will be
blown strongly. The house isn’t that draughty then I
expected. Even though the experiment isn’t entertaining,
but I had learned lesson from this project. First, next
time I should choose a more challenging experiment.
Second, I had learn some new words like draughts. Third, I
had learn the power of wind and how sneaky they are.

10. Draughts
---- Small cracks or leaks that wind can come in. Mostly happens to
windows and doors.
Anticipate
---- Expected
Cling Film
---- A transparent sheet; mostly used to wrap food to prevent from
rotten food.
 Meticulous
---- Showing great attention; very careful and precise

11. I have learned that why sometimes the house can be freezing cold
just because of this mischievous draughts that makes the wind into
our house.
To avoid draughts, we could stuff tissues or towels on the doors
but that isn’t necessary.
Because of draughts, the heat in rooms can disappear quickly.
Wind is really sneaky and smart as well because it can find
cracks on doors and windows and take over the hot or cold air. It
depends on what weather it is.
• In real life, scientists use this experiment to observe the the
weather, but not with cling film. So that’s why there is weather
reports.