nall and sanner

By ultimate

  • Problem

    when looking at the floor with oblique lighting, will we be able to find clues to help us find the person who shot her husband?
  • Period: to

    Nall and Sanner

  • Period: to

    nall and Sanner

  • Hypothesis

    Nall-The oblique lighting will help to show anything the murderer left as a trace to who they are, or to help us figure out what happened.
    Sanner-I think it would show the footprints and the design of the shoe easier.

  • Materials

    Flashlight
    A room that can be darkened
    Sticky notes in two colors
    Pencil
    Notebook

  • The rest of the procedure

    1. Squat on 1 side of the area of floor u just examined. Hold a flash light about 1 inch above the floor. (The height causes the beam 2 hit the floor at a low angle.) shine the flashlight across the floor so that it is almost parallel 2 the floor's surface. 5. Slowly fan the light back and forth across the floor. Put a sticky note of a different color beside each new footprint u find. 6. In ur science notebook, make a second list of the items that u can c on the floor using the oblique lighting

  • and the rest

    technique. Donot include items that were visible to you when the overhead lights were on.

  • Procedure

    1 Go to a room that has blinds or curtains and can be darkened later in the experiment. With normal, overhead lighting, carefully search a small section of the floor for footprints. If you see a footprint, place a sticky note on the floor beside the print. 2. In your notebook, make a list of all the other materials that you can see on the floor, Items such as string, dust, and candy wrappers. 3. Darken the room as much as possible by closing blinds or drapes and turning off overhead lights.

  • data

    lights on: staples, red lead, hard black spot, white string, rocks, black smudge on wall, food spots and more black hard spots
    lights off: silver thing, rocks, bean, rubber band, paper, highlighter, pencil, marker, orange paper, piece of an eraser, crumb, paint scraped, price tag, duct tape

  • lesson 2

    1. Work with a partner to find out how oblique lighting can be used to detect forgery. Using a pencil with a good eraser, write the three sentences that follow on a sheet of notebook paper. Leave a blank line after each sentence. These sentences are exerpts from a will. A. I leave my house to my good friend Thomas Horn. b. I leave my car to my good friend Celia Sears. C. I leave all of my money in my savings account to my good friend Robert Wong.

  • The rest aka c, 2, & half of 3

    C. I leave all of my money in my savings account to my good friend Robert Wong. 2. Ask your partner to go cover their eyes and turn their head. Once you are alone, erase the name in one of the sentences and replace it with "Hans Gunter." (or make your own change to the sentence) Be careful with your erasurs so that your partner cannot see any clues that will help him/her. 3. Ask your partner to examine the three sentences in "normal" room light. Have her write down the letter of the sentence

  • the rest of 3 and more

    that he/she believes you changed. 4. Have your partner examine the three sentences using the oblique lighting technique. Have him/her write down the sentence that he/she believes you have changed. 5. Swap roles with your partner and repeat the activity.

  • Conclusion

    Nall-If your partner erases and rewrites dark enough you are not able to tell they changed anything.