Monday- We got to work with lasers today. Fins asked what we knew about light, and from Mr. Sandler in 5th grade and TV, i knew alot...

-Light travels in rays.

-It is a form of energy.

-Reflects off of every thing except black.(And black holes)

-Without it sight is not possible.

-Travels at 1200 something miles a second.

Then Mr. Finley wrote important stuff on the board.

Student A: We cannot see without light

Student B: Its hard to see without light, but eventually our eyes adjust and we can se something

Naturally, you'd think B because its longer and looks better, but its actually A, Because our eyes need light to see, so without it, our eyes are useless.

After this, Finley asked us a question, 'How does a laser get from the laser pointer to the wall. We came up with the hypothesis that Mr. Finley was a witch and we should burn him (ha). I had already known this so it was easy.

The light is created in the laser pointer and goes through a lens to concentrate the light(at least on my laser pointers(i destroyed 3 trying to see if i could put them in a watch, and they all worked the same way.)), and travels in rays to the wall, where it reflects into your eyes.

Tuesday- The day of experiments, sort of. We had to come up with experiments of how the lasers travel and the darkness under the desk. Me and david decided to use my brothers smoke machine to shine the laser through, but i did not have it so we just used flour. We also came up with the idea to shine the laser through fiber optic cables, witch david happened to have at his house.

Since we both knew how light traveled, the first experiment was for fun, and we just other kids flour. We could see the beam of light as it went through the flour.

We knew what would happen with the second experiment, but we did it anyway. We proved that lasers reflected off of glass in a small black tube.

For the black box, we didn't really have time for much, but we could not see the sign, and we knew we would not.

Wednesday- Today things get kind of fun. We had a quiz (yay) on SpongeBob SquarePants conducting science experiments. Then i got my brothers smoke machine to test how lasers travel. It works the same way as flour, but is easier to see. We also got fun homework.

Why doesn't light from the laser bounce off of air particles like it does with dust/flour/chalk particles? Shouldn't we always be able to see the beam?

My answer was that you would not be able to see the beam because the particles are probably so small that they would be transparent and if they did reflect, there would be so little light that you wouldn't be able to see it.

Thursday- We got to play with light bulbs today. Unlike lasers, light bulbs give off light in all directions. The blue dot on the bulb was the main point of the day. The question was how many rays are given off from the small dot. I answered an unimaginable amount off rays are give off in all directions that are so densely packed it seems like an orb around the light bulb.

Friday- Today we tested if the rays emitted from the light bulb came off at right angles or at every angle. Mr. Finley put up two drawings, one of the rays coming off at right angles, and one with the rays coming off at every angle. I chose the second because you can see the points on the light bulb every where you go.

Please tell me if anything is wrong Finley.