1. Independent Variables: Composition and thickness of barrier
Hypothesis: Electromagnetic Radiation (EMF) can noticeably be insulated or blocked by barriers of varying characteristics
Independent Variables: Composition and thickness of barrier
Dependent Variable: Increase or decrease in the EMF detected
Variables Held Constant:
EMF Producing Source
Distance
Surface Area (Approx. when possible)
Material (In select trials only)
Thickness (In select trials only)
Quantitative Measurement: EMF peak intensity in micro Tesla (µT)

2. Materials: Procedure: ▪ EMF Meter (iPhone 5,6 Measures 2 App)
▪ Paper, Plastic, Wood, Fabric, Mineral and Metal Panels
▪ Neodymium Magnet
▪ A Variety of Common Sample Devices
Procedure:
1. Conduct an initial survey of the electromagnetic
radiation profiles emitted by common objects and
environments (to provide background information as
well as familiarity with obtaining readings)
2. Choose an experimental location free of
known electromagnetic interference.
3. Establish a baseline reading (without a magnet
and with a magnet that is not blocked)
4. Position a barrier in between the magnet and the meter.
The distance between the 3 objects will be fixed for each trial.
(See Student Data Log)
5. Monitor activity on the EMF meter and record peak
values for each trial.
6. Repeat from Step 3, adjusting either the composition
(material) of the barrier or thickness (when allowed)
7. Compare all values to locate significant or reliable
patterns among the results