| Hint | Answer | % Correct |
|---|---|---|
| Very cold chamber to store food | Freezer | 80%
|
| You'll get more crops if you use this | Fertilizer | 75%
|
| A little propeller to make wind | Fan | 70%
|
| The first technology. Credits to Prometheus. | Fire | 70%
|
| This makes photography possible when it's too dark | Flash | 70%
|
| Grains ground for baking | Flour | 65%
|
| Naturally occuring tool to make it | Flint | 60%
|
| Very hot chamber to melt ores | Furnace | 50%
|
| Method to produce gas, oil, and earthquakes | Fracking | 45%
|
| Method to send light through cables | Fibre optics | 35%
|
| Device to separate things from a mixture | Filter | 35%
|
| Broadcasting standard (not digital) | FM Radio | 20%
|
| Vehicle that can carry heavy loads | Forklift | 20%
|
| Train that goes uphill | Funicular | 15%
|
| Effect used to turn "dark light" into visible light | Fluorescence | 10%
|