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Stem Model enginediy | Marx Generator 6 Stage High Voltage Lightning Experiment Electric Arc Educational Assembled ModelStem Model enginediy | Marx Generator 6 Stage High Voltage Lightning Experiment Electric Arc Educational Assembled Model
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Experiment Model

Stem Model enginediy | Marx Generator 6 Stage High Voltage Lightning Experiment Electric Arc Educational Assembled Model

$96.61
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Stem Model enginediy | Marx Generator Kit 10 Stage High Voltage Diy Lightning Experiment Educational Model - EnginediyStem Model enginediy | Marx Generator Kit 10 Stage High Voltage Diy Lightning Experiment Educational Model - Enginediy
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Mini Generator

Stem Model enginediy | Marx Generator Kit 10 Stage High Voltage Diy Lightning Experiment Educational Model – Enginediy

$96.62
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Stem Model enginediy | Marx Generator Kit 10 Stage High Voltage Diy Lightning Experiment Educational Model - EnginediyStem Model enginediy | Marx Generator Kit 10 Stage High Voltage Diy Lightning Experiment Educational Model - Enginediy
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Stark® Motor & Model

Stem Model enginediy | Marx Generator Kit 10 Stage High Voltage Diy Lightning Experiment Educational Model – Enginediy

$96.19
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Stem Model enginediy | Marx Generator Kit 10 Stage High Voltage Diy Lightning Experiment Educational Model - EnginediyStem Model enginediy | Marx Generator Kit 10 Stage High Voltage Diy Lightning Experiment Educational Model - Enginediy
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Experiment Model

Stem Model enginediy | Marx Generator Kit 10 Stage High Voltage Diy Lightning Experiment Educational Model – Enginediy

$81.00
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Stem Model enginediy | Marx Generator Kit 10 Stage High Voltage Diy Lightning Experiment Educational Model - EnginediyStem Model enginediy | Marx Generator Kit 10 Stage High Voltage Diy Lightning Experiment Educational Model - Enginediy
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Electric Generator Model

Stem Model enginediy | Marx Generator Kit 10 Stage High Voltage Diy Lightning Experiment Educational Model – Enginediy

$79.00
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Stem Model enginediy | Marx Generator Kit 10 Stage High Voltage Diy Lightning Experiment Electric Arc Educational Model KitStem Model enginediy | Marx Generator Kit 10 Stage High Voltage Diy Lightning Experiment Electric Arc Educational Model Kit
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Experiment Model

Stem Model enginediy | Marx Generator Kit 10 Stage High Voltage Diy Lightning Experiment Electric Arc Educational Model Kit

$98.39
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Stem Model enginediy | Marx Generator Kit 20 Stage High Voltage Diy Lightning Experiment Electric Arc Educational Model KitStem Model enginediy | Marx Generator Kit 20 Stage High Voltage Diy Lightning Experiment Electric Arc Educational Model Kit
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Experiment Model

Stem Model enginediy | Marx Generator Kit 20 Stage High Voltage Diy Lightning Experiment Electric Arc Educational Model Kit

$96.90
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Stem Model enginediy | Marx Generator Kit 6 Stage High Voltage Diy Lightning Experiment Electric Arc Educational Model KitStem Model enginediy | Marx Generator Kit 6 Stage High Voltage Diy Lightning Experiment Electric Arc Educational Model Kit
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Experiment Model

Stem Model enginediy | Marx Generator Kit 6 Stage High Voltage Diy Lightning Experiment Electric Arc Educational Model Kit

$62.99
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Stem Model enginediy | Marx Generator Kit Level 20 High Voltage Diy Lightning Experiment Educational ModelStem Model enginediy | Marx Generator Kit Level 20 High Voltage Diy Lightning Experiment Educational Model
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Experiment Model

Stem Model enginediy | Marx Generator Kit Level 20 High Voltage Diy Lightning Experiment Educational Model

$77.00
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Stem Model enginediy | Mendocino Motor Solar Magnetic Levitation Motor Engine Science ToyStem Model enginediy | Mendocino Motor Solar Magnetic Levitation Motor Engine Science Toy
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Stark® Motor & Model

Stem Model enginediy | Mendocino Motor Solar Magnetic Levitation Motor Engine Science Toy

$25.99
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Stem Model enginediy | Mendocino Motor Solar Magnetic Levitation Motor Engine Science ToyStem Model enginediy | Mendocino Motor Solar Magnetic Levitation Motor Engine Science Toy
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Solar Magnetic Levitation Motor

Stem Model enginediy | Mendocino Motor Solar Magnetic Levitation Motor Engine Science Toy

$23.99
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Stem Model enginediy | Metal 2 Cylinder Stirling Engine Model Scientific Experiment Educational ToysStem Model enginediy | Metal 2 Cylinder Stirling Engine Model Scientific Experiment Educational Toys
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Experiment Model

Stem Model enginediy | Metal 2 Cylinder Stirling Engine Model Scientific Experiment Educational Toys

$36.59