Shelley School District G/T
Wind Challenges
Grade Two
Challenge: build a model farm with a
working wind mill
Wind Objectives:
1. Learn the parts of a wind mill
2. Understand pitch
Grade Three
Challenge: build a wind turbine from
recycled materials that produces as
much voltage as possible
Wind Objectives:
1. Know the parts of a wind turbine
2. Understand how blade speed and
voltage are related
Grade Three Results
Voltage
Group
Initial
Final
Change
1
2
3
4
5
6
7
8
9
10
1.7
1.0
1.54
0
0
1.03
1.07
.87
1.07
.65
1.87*
1.51
1.79
1.49
1.66
1.71
.88
1.52
1.86
1.52
+.17
+.51
+.25
+1.49
+1.66*
+.68
-.19
+.65
+.79
+.87
Grade Four
Challenge: build a wind turbine out of
recycled parts that delivers maximum
voltage using a 10 ohm resistor
Wind Objectives:
1. Understand the relationship between
blade shape, size and mass and voltage
2. Understand the effect a load has on
voltage output
Grade 4 Results
Team
1
2
3
4
5
6
7
8
9
10
Initial
.3
.1
.2
.3
.4
.2
.1
.2
.9
.2
Final
1.3
.6
.9
1.4
1.4
1.7
.7
1.1
2.3
.6
V.
1.0
.5
.7
1.1
1.0
1.5
.6
.9
1.4
.4
Grade 5
Challenge: build a windmill that produces
maximum lift (torque)
Wind Objectives:
1. Understand the effect blade design has
on lift
2. Understand the difference between
speed and torque
Grade 5 Results
Lift (# of Washers)
Group
Initial
Final
Change
1
2
3
4
5
6
7
8
9
-1
9
-1
8
0
8
0
55
3
33
28
48
33
50
62
63
72
1
34
19
49
25
50
54
63
17
-2
Grade 6
Challenge: build a complete wind turbine
(excluding the hub and generator) out of
recycled materials
Wind Objectives:
1. Understand the arguments for and
against wind energy
2. Understand how the different parts of a
wind turbine function
Grade 8
Challenge: build a wind mill that performs a
specific mechanical task.
Wind Objectives:
1. Understand how each part of a wind mill
works
2. Understand gears and pulleys
3. Develop creativity