1. What size is your carbon footprint? Devices to measure the wind Here are some ideas to help you design a device for measuring the strength of the wind. Do they really want to measure my wind? Not that kind of wind, you fool!

2. What size is your carbon footprint? Devices to measure the wind cotton thread 3 points ribbon 2 points thick string 1 point Here, the wind strength is… 3 + 2 + 1 = 6 points This is the easiest to make. You tape three different kinds of thread to a stick. The wind strength is scored according to the position of each thread: straight down = 0 points, ¼ way up = 1 point, ½ way up = 2 points, ¾ way up = 3 points, horizontal = 4 points. Then add the points from all three threads to give a total score.

3. What size is your carbon footprint? Devices to measure the wind This is fun to make. You need scrap card, a piece of ribbon, a protractor, ruler and sticky tape. The device can be taped to a stick or a ruler. This device is easy to score. The wind strength here is… 5.

4. What size is your carbon footprint? Devices to measure the wind 01 2 3 7 8 6 This is a bit more complicated. A measuring scale is taped onto a stick. The swinging measure is a piece of card, hanging by paper clips from another stick. We had to use paper clips to weigh it down. The wind strength here is… 4.

5. What size is your carbon footprint? Devices to measure the wind This is the template for a hand held design. You need a piece of card, thread and a ruler (to measure the distance between the lines) and a pencil. What is the wind strength in this example? thread tie here scale marked on stiff card wind from this direction Ideas from the book ‘Teaching about Energy,’ by Clare Eastland. (Published by Southgate Publishers ISBN 1-85741-088-2). Energy.

6. What size is your carbon footprint? Devices to measure the wind Timesite 1site 2site 3site 4site 5 Monday am 65 Monday pm Tuesday am Tuesday pm Wednesday am Wednesday pm Thursday am Thursday pm Friday am Friday pm You will need to make a wind strength record sheet. You’ll also need to describe the exact locations so you don’t forget where each place is!

7. What size is your carbon footprint? Devices to measure the wind Wind direction is measured with a wind vane and it is described by the compass point from which the wind is coming e.g. south, south west etc. You’ll need to plot the compass points and mark these on the ground, before you can record wind direction. Then plot the wind direction for each day of the month on a graph called a wind rose. If there isn’t any wind, you just mark the centre. The direction from which the wind blows most frequently is called the prevailing wind. Extension: Recording wind direction on a Wind Rose This PowerPoint and lesson are based on work by Ian Mitchell, The Green Egg Company, developed & edited by Amie Andrews for TLCP and Ali Ross, Sundog Energy.