Measuring weather.
Definitions:
- Anemometer:
- Beaufort wind scale:
MATERIALS
- Tape
- Disks
- Wooden Sticks
- Pencil
- Pin
STEPS
- Crist Cross the sticks
- Tape them together
- Get the Disks on the end of the sticks
- Tape the Disks an the sticks together
- Add the pin on the one of the corners Because it wont go in the center
Groups size: 5
Roles:
Roles:
- Timekeeper
- Counter
- Recorder
- Anemometer Manager
- Wind Manager
- Mount the anemometer in a place that has full access to the wind from all directions.
- 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.
- 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.
Place name on school grounds | Number of Spins in 15 seconds | |
1. | HHS SCHOOL FEILD | 1 |
2. | OLD J BLOCK | 1 |
3. | SMALL HILL |
1
|
4. | COURT | 2 |
CONCLUSION: The court is full of wind but not to much so there is 2 spins while the rest are an open space so they have 1 spin
Wind
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 direction of wind smoke drift, but not by wind vanes.
|
Light
|
2
|
6-12
|
40
|
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 loose 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
|
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