Difficulty: Moderately Easy
Instructions
Things You'll Need:
- One red plastic cup
- Three white plastic cups
- Wood post
- Two pieces of balsa wood (2 x 10cm or 12 inches)
- Nail
- Three large beads
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Step 1
First gather your materials.
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Step 2
Glue the pieces of balsa wood together at right angles to one another to form a cross-shape.
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Step 3
When the glue has set, use the nail to make a hole through the center. Remove the nail.
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Step 4
Glue the base of the pots to the ends of the balsa-wood arms. Make sure that the pots all face the same way.
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Step 5
Thread one bead on to the nail, then push it through the hole in the wooden cross and thread on the two remaining beads.
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Step 6
Hammer the nail into the top of the wooden post.
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Step 7
Hold your anemometer in the wind.
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Step 8
Keep your eye on the red pot and count how many times it turns in a minute.
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Step 9
Record your observations in your weather record journal.
