BUILDING A WEATHER STATION

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BUILDING A WEATHER STATION
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DIRECTIONS FOR MAKING THE INSTRAMENTS

• BAROMETER
• ANEMOMETER
• RAIN GUAGE
• HYGROMETER

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BAROMETER
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BAROMETER DIRECTIONS

• Cut the top off a balloon, stretch the balloon
  top over the open end of a jar, and secure it
  with a rubber band.

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Barometer contd

• Next, tape a straight pin to one end of a straw.
  Tape the other end of the straw to the top
  surface of the balloon. Make sure the end of the
  straw is in the center of the balloon. The pin
  will be the needle on the barometer.

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Barometer contd

• Next, tape an index card to a box and place it
  beside the straight pin. Mark where the pin is
  pointing with a dash.

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ANEMOMETER
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ANEMOMETER DIRECTIONS

• Cut a 12 inch length of string, and tape one end
  to a ping pong ball.

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Anemometer contd

• Tape the other end of the string to the center of
  the protractor.

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RAIN GUAGE
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RAIN GAUGE DIRECTIONS

• Cut off the top on an empty plastic 2 liter
  bottle (about 2/3 of the way down the bottle).
  Be careful to cut an even line all the way
  around. The top will act as a funnel for your
  rain gauge.

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Rain Gauge contd

• Next. remove the cap, turn the top upside down,
  and insert it into the base. Tape the two edges
  together so no water can enter or escape.

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Rain Gauge contd

• Along the edge of an index card, make a "zero"
  mark. From the mark, measure off 1/8 inch
  distances to calibrate (mark) the scale. Tape
  the index card to the side of the rain gauge.
  The zero mark should be at the bottom of the
  bottle.

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HYGROMETER
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HYGROMETER DIRECTIONS

• Cut a one inch by three inch piece of felt. Wrap
  the felt around the bottom of one thermometer.

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Hygrometer contd

• Staple the felt to the plastic thermometer. Lace
  the two thermometers back to back on the shoe
  string.
• The teacher will also supply a thermometer and
  weather vane to the class to add to the weather
  station.