Making anemometer - Hurumanu

Extreme weather

Measuring weather.

Definitions:

1.  Anemometer:

It is an instrument used to measure winds

1. Beaufort wind scale:

It is on land in the water

MATERIALS

1. 2 sticks

2. Pencil

3. Celetape

4. 4 cups

5. Pin

6 Sticky note

STEPS

1. Tape 2 sticks together to create the cross
2. Connect all 4 cups on both ends of the sticks with tape
3. Push in the pin in the center of the two sticks
4. Well done you have created an anemometer

Group Investigation.

Groups size: 5 
Roles:

• Timekeeper
• Counter
• Recorder
• Anemometer Manager
• Wind Manager

1. Mount the anemometer in a place that has full access to the wind from all directions.
2. When the time keeper says "Go", the counter in each group will count how many times the marked cup passes them in one minute and write it down.
3. Repeat the above step four (4) times and record the number of spins on the chart.

FINDINGS

• Record how many times it spins and record it in the table below.

• You will need to time them and count the number of spins.

WHICH IS THE WINDEST AREA AND WHY?

Field because there are no buildings surrounding it, therefore, letting the wind to be more powerful

WHICH IS THE CALMEST AREA AND WHY?

Tennis court gate

the gate is surrounded by trees

WHERE IS THE BEST PLACE ON LAND TO BUILD A WINDMILL?

Field because a lot of wind will come through

	Place name on school grounds	Number of Spins in 15 seconds
1.	Field	20
2.	Old J Block	15
3.	Grass hill in the quad	10
4.	Tennis Court gate	3

CONCLUSION:

In conclusion, I have learnt that an Anemometer is an instrument used to measure how strong the wind is.  This means that they will have an object that says how strong the wind is blowing.  I know this because we got the chance to make our own.

Although we did not use it we got the chance to create one first hand.  But the Anemometer is not the only tool used to identify how strong the wind is.  I have also learnt how to know how strong the wind is with a Beaufort Wind Scale is something you use to identify what it means to how many spins that the Anemometer makes.  You will see an example when you continue down from my blog.

As always I have learnt so much about these powerful elements such as the good and the bad.  I would like to say that this was the most interesting science class that I have had.  I thank the teachers for this amazing lesson and goodbye.
My Graph:

Wind

Beaufort Wind Scale

Beaufort Force	Wind Speed (KPH)	Spins	Indicators	Terms Used in NWS Forecasts
0	0-2	0	Calm; smoke rises vertically.	Calm
1	2-5	10	Shown by the direction of wind smoke drift, but not by wind vanes.	Light
2	6-12	40	The wind felt on face, leaves rustle; ordinary vanes moved by wind.	Light
3	13-20	80	Leaves and small twigs in constant motion; wind extends light flag.	Gentle
4	21-29	130	Raises dust and lose paper; small branches are moved.	Moderate
5	30-39	190	Small trees in leaf begin to sway; crested wavelets form on inland waters.	Fresh
6	40-50	250	Large branches in motion; whistling heard in telephone wires; umbrellas used with difficulty.	Strong
7	51-61	320	Whole trees in motion; inconvenience felt walking against the wind.	Strong
8	62-74	390	Breaks twigs off trees; generally impedes progress.	Gale
9	75-87	470	Slight structural damage.	Gale
10	88-101	550	Seldom experienced inland; trees uprooted; considerable structural damage occurs.	Whole gale
11	102-116	640	Very rarely experienced inland; accompanied by widespread damage.	Whole gale
12	117 or more	730+	Very rarely experienced; accompanied by widespread damage.	Hurricane

Spins per minute	Wind speed ( kph)	Beaufort Scale
Field - 20	6 - 12	The wind felt on face, leaves rustle; ordinary vanes moved by wind.
Old J Block site - 15	5 - 12	Shown by direction of wind smoke drift, but not by wind vanes.
Grass hill - 10	2 - 5	Shown by the direction of wind smoke drift, but not by wind vanes.
Tennis Court Gate - 3	0 - 2	Shown by the direction of wind smoke drift, but not by wind vanes.

The Boy who Harnessed the Wind: 1:36