Build an Anemometer to Measure Wind Speed

Each group needs:

• 4 small paper cups
• push pin
• sharpened pencil with eraser on the end
• timer on a phone, clock or watch
• stiff, corrugated cardboard (enough to cut two, same-size strips, each 13 to 23 cm [5 to 9 in] long for each team; used boxes are ideal)
• modeling clay (about 85 grams or 3 oz or ¼ cup)
• scissors
• marking pens
• rulers (for measuring)
• stapler
• Anemometer Worksheet (PDF)