This week in Mr. Finley’s science class we did a lot of experiments! We also earned quite a few ideas including things like reflection. We learned that if you shine a laser onto a mirror, then you see a faint dot on the mirror where you would expect the laser to point. If you look around the room, you’ll find the proper dot that is shining just as bright as it would without the mirror redirecting its light. Now you might be saying to yourself, doesn’t that mean that the lasers’ light is reflecting twice? Once off the mirror onto the wall, and off the wall into your eyes. Yes, it’s true!! That is what happened with those good old lasers and mirrors! The way we know that this is happening is we tested it; of course! If you get the erasers and clap the dust out of them like we did last week, you can see the direct path of the laser going from the laser itself, off the mirror, and onto the wall! Amazing!!
We learned these ideas in science by observing, making hypothesizes, and experimenting. Mr. Finley would tell us an idea once and while and make us figure out if it is true of false by testing it! Science is so exciting! As a class we discussed certain things like- how is it possible that the light from the laser is over on the wall over there, even though we’re pointing at the mirror?! It was a stumper until we experimented and taught ourselves how it works.
It is SO important to know these ideas! I mean sure, I could have lived a long, happy life without knowing how lasers work, but now that I know, it’s so great! We really should know how these things work because it is a part of our everyday lives. We use light to see all the time and I mean ALL THE TIME. Lasers have a great deal of real world application…. I think!
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