Radical+Radios

= = = Can I build a simple crystal set radio that works? Will it pick up different numbers of stations at different times of the day? = =   = = =

=  __Task 1: Answer these Questions__  = >
 * 1) How does a crystal radio work? A crystal radio is the simplest radio that you can get. It just picks up the electro-magnetic wave and changes it straight into sound. It has no separate power or batteries which bigger radios have. In bigger radios the batteries are used to make the copy of the sound stronger.
 * 2) What are radio waves? radio waves are invisible waves that are made of electricity and magnetism. They move just like water waves do but they're much faster - they move at 300,000km per second!
 * 3) who invented the radio It was invented in 1895 by Nikola Tesla.

"Foxhole ra ==  __Task 2: List your independent, dependent and controlled variables:__  ==

__1. Independent variable:__

__2. Dependent variable:__

__3. Controlled variables:__

=  __Task 3: What is the hypothesis for your experiment?__  = that it might not work and it work.

=  __Task 4: What equipment do you need for your experiment?__  =

=  __Task 5: List all steps in the method of your experiment (try and include a diagram or video that helps explain):__  =

__**Task 6: Observation and discussion**__

Note down what you noticed as you did each experiment. Try and include an image or a video or photos of your experiment.

__Experiment 1 Observations:__

__Experiment 2 Observations:__

__Experiment 3 Observations:__

= __Task 7: Results__  =

Take a screen shot of your results table. Upload it and put it here:

__Task 8: Conclusion__
Write a statement that says whether your hypothesis was wrong. If you were wrong, why were you wrong?