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// VIDEO 1. Dr. Quantum - Double slit experiment //
1. You are about to watch a video called "Dr. Quantum - Double slit experiment". What do you think it will be about? I think it will be about the demonstration of the double slit experiment, but I really don't have any idea of what this experiment is.
 * //*Before watching the video. Answer the following questions:// **

2. Go to a dictionary and copy the definition of "slit". Is it a noun, a verb? Is it both?. Mention all definitions. //Slit//: __to make a long straight narrow cut in something__. It is a noun and a verb because it can be use to talk about opening something like  the enveloped of a gift or when someone cut him/herself by slitting his/her wrist or throat, and finally to talk about clothes for example the  slit that have some dresses or skirts. __[] __

3. Mention five words you think you will find in the video. -Particles -Waves -Slit -Matter -Duality

1.Are there any of the words you mentioned in the previous question in the video? Yes, actually in the video are mentioned four of them: particles, waves, slit and matter.
 * //*During and after watching the video. Answer the following questions:// **

2. What's the experiment about? Describe it.

-a. What does he need to do the experiment? He need to see how particles or marbles of matter act when they hit a back wall after shooting them through to one slit and through two slits.

-b. How many steps does it have? It has two steps the first one using one slit and the second using two slits.

-c.What happens in each step? In the first step we see how marbles, waves and electrons act in a back wall when we shoot them through one slit, and in the second step to watch how marbles, waves and electrons act in a back wall too but by shooting them through two slits.

-d. What is the third element Dr. Quantum uses? The third element use are electrons.

3. What happens with balls and one slit? And with two slits? When we shoot the marbles through one slit they draw a line in the back wall, but when we shoot them through two slits they draw two lines, and extra band than in the first one, in the back wall.

4. What about waves? We expect that the same happen when we do the experiment with waves however, when the waves hit the slit and pass through it, they radiated out and hit the wall with the most intensity in just one point that we draw as a line, but when the waves pass through two slits something different happened we have and interference pattern of many bands.

5. What happens with electrons? When electrons pass through just one slit it occurs the same that in marbles, in the back wall it is draw just one band. But when they pass through two slits we get an interference pattern like waves.

6. What explanation does Dr. Quantum give? The single electron lives as a particle becomes a wave of potencials go through both slits and interfers with itself to hit the wall as a particle but the observer collapse the wave function even by observing so we see it as a particle.