| 1 | Introduction to Data Collection | Go Direct® Temperature Probe |
| 2 | Exploring Magnetism | Go Direct® 3-Axis Magnetic Field Sensor |
| 3 | Where IS North? | Go Direct® 3-Axis Magnetic Field Sensor |
| 4 | Searching for Iron Ore | Go Direct® 3-Axis Magnetic Field Sensor |
| 5 | Sea Floor Spreading | Go Direct® 3-Axis Magnetic Field Sensor |
| 6 | Soil pH | Go Direct® pH Sensor |
| 7 | Soil Salinity | Go Direct® Conductivity Probe |
| 8 | Soil and Acid Rain | Go Direct® pH Sensor |
| 9 | Soil Temperature | Go Direct® Temperature Probe (3) |
| 10 | Water Quality: Temperature | Go Direct® Temperature Probe |
| 11 | Water Quality: pH | Go Direct® pH Sensor |
| 12 | Water Quality: Turbidity | Turbidity Sensor, Go!Link |
| 13 | Water Quality: Total Dissolved Solids | Go Direct® Conductivity Probe |
| 14 | Water Treatment | Conductivity Probe, pH Sensor, Turbidity Sensor |
| 15 | Salinity of Ocean Water | Go Direct® Conductivity Probe |
| 16 | Acid Rain and Its Effect on Surface Water | Go Direct® pH Sensor |
| 17 | Freezing of Ocean Water | Go Direct® Temperature Probe |
| 18 | Desalination | Go Direct® Conductivity Probe |
| 19 | Mapping the Ocean Floor | Go Direct® Motion Detector |
| 20 | Are All Sunglasses Created Equal? | Go Direct® Light and Color Sensor |
| 21 | Comparing Sunscreens | Go Direct® Light and Color Sensor |
| 22 | UV Light and Clothing | Go Direct® Light and Color Sensor |
| 23 | Reflection and Absorption of Light | Go Direct® Light and Color Sensor, Go Direct® Temperature Probe |
| 24 | The Greenhouse Effect | Go Direct® Temperature Probe (2) |
| 25 | Land and Sea Breezes | Go Direct® Temperature Probe (2) |
| 26 | Relative Humidity | Go Direct® Temperature Probe (2) |
| 27 | Dew Point Temperature | Go Direct® Temperature Probe |
| 28 | Wind Chill | Go Direct® Temperature Probe (2) |
| 29 | Seasons and Angle of Insolation | Go Direct® Temperature Probe |
| 30 | Energy from Fossil Fuels | Go Direct® Temperature Probe |
| 31 | Solar Homes | Go Direct® Temperature Probe (2) |
| 32 | Photovoltaic Cells | Go Direct® Energy Sensor, Go Direct® Light and Color Sensor, Vernier Resistor Board, KidWind 2V/400mA Solar Panel |
| 33 | Wind Power | Go Direct® Energy Sensor, KidWind Basic Wind Experiment Kit, Vernier Resistor Board |
| P1 | Air Temperature | Go Direct® Temperature Probe (2) |
| P2 | Air Temperature and Relative Humidity | Go Direct® Weather System |
| P3 | Ground Temperature | Go Direct® Temperature Probe (2) |
| P4 | Barometric Pressure | Barometer, Go!Link |
| P5 | Measuring Particulates | Go Direct® Light and Color Sensor |
| P6 | Weather Stations | Davis Vantage Vue Weather Station with WeatherLink Console |
