1. Teacher Name: [Eileen Bendixsen]

3. School Name: [Beers Street Middle School]

4. City or Town: [Hazlet]

5. State: [NJ]

6. Country: [USA]

7. Class Name (only needed if you are submitting other forms for other classes - i.e. 3rd period Science): [8th period science]

Choose one:

[ x ] b) Middle (Grades 6-8)

9. Number of students who worked on the plan: [17]

10. Your plan - describe in as much detail as possible each instrument you have included in your plan. Be sure to include information on why you selected this instrument, how each one will be built, and how you would test its accuracy if you actually were to build it (maximum words: 500)

[The instruments we will use for our plan are a barometer, cloud chart, compass, anemometer, rain gauge, sling psychrometer and three thermometers. We want to place one thermometer in the shade, one on the blacktop and one in the middle of the field. We feel that this will give us a range of temperatures to study. The one in the shade is probably the most accurate. We will use the cloud chart to determine the cloud type and also determine the percentage of cloud cover by looking as far as we can see in all directions and estimate the percentage of the sky which is covered with clouds. We will divide the sky up mentally to do this. It is similar to the way you would use graph paper. We will throw a bunch of grass up in the air and! see which way it blows. Then using a compass we will determine the wind direction. Our anemometer will measure the speed of the wind. We will D use an inexpensive sling psychrometer (two thermometers one wet - covered with gauze - one dry) to measure humidity. We had to give up our more accurate one due to the \$79 cost of it. We will also use a barometer to measure atmospheric pressure and a rain gauge. We feel that throwing the grass up in the air to see which way the wind is blowing is an accurate way to measure wind direction. We use this method in sports and have found it to work very well. The wind direction can be determined before it falls to the ground. With the mild breezes that occur in our area it would be difficult to get something heavier to always give an accurate reading.]

11. How do you know that the cost of the materials to build all of your instruments will be under \$100.00 (maximum words: 200)?

[We used the Sargent Welch catalog and actual purchase price (recent pu!rchases) to get our costs. We used the Sargent Welch catalog and actual purchase price (recent purchases) to get our costs. Barometer (\$10), 3 thermometers (\$21), , compass (\$10), sling psychrometer (\$15), cloud chart (\$10), and rain gauge (\$1 on sale at Franks), and an anemometer (\$30)]