Week of September 25.

This week in Mr. Finley's science class, I learned about how light comes out in different directions from a light bulb, not just one ray. We should know about light bulbs and their rays because we tend to use them in our everyday lives. Certain ideas that my class came up with about the rays of a lightbulb. One idea was that the rays spread straight up from the light bulb. Another idea was that the rays leave in all directions from one point on the bulb. Both of these ideas show that the direction of the path goes straight out from the light bulb. So our class started an expirament by turning off all the lights in the room so that the room in nearly pitch dark. My partner, Gabby Zepnick, and I held a piece of cardboard with a tiny hole in the center of it near the lightbulb. If what i had mentioned earlier, about the rays spreading straight up from different sections of the light bulb was correct, then i would've seen a small tiny dot on the wall or surface next to the cardboard. But really, my partner and i saw a light covering a section of the wall, so based on this, the second idea, that the rays spread in all directions, was therefore, correct, based on the expirament. One day during the week, we had a quiz. At the end of the class period Mr Finley lit a candle and placed it near a piece of cardboard, the image on the wayy was upside down. Our homework was to find out why the image appeared to be upside down, rather than right side up. The next day in class, we found out why the candle light image on the wayy wasnt right side up. It seemed to be because the candle light rays couldnt go through the hole straight, so the rays stop at the cardboard and don't show up to be on the wall, but the rays that go diagnol can fit through so they go on the other side of the wall, leading the image of the light to be shown upiside down. For a couple days during the week we attempted several expiraments to see how the way we see an object is done. Our class came up with that in order to see an object, we need a light source so this way the light rays bounce off the object, and then into our eyes. We've done expiraments in class using a marker and talking about how our eyes and brain works in order to see images/ objects correctly. I believe it was Friday when we expiramented again with lasers and mirrors. We attempted multiple expiraments to figure out what kind of surfaces the lasers go through and the brightness of the dot when it appears on the surface. Our group found many surfaces including the classroom door's window, Lauren's plastic pencil box, and the given agendas[ the clear part in the front ] most of them we're rated 4 or 3 on the brightness level.
I'm so glad we learn a whole lot in Mr. Finley's class(:
-Jess!