MAY THE LIGHT BE WITH YOU !!!!!!!

Today in our science class we are talking about Fluorescence, Phosphorescence and Chemiluminescence lights.

FLUORESCENCE
- The creation and emission of light by absorbing UV light energy from another object.
- Needs consistent enrgy to work.
(ex) Fluorescent light bulbs.

PHOSPHORESCENCE
- The creation and emission of light by ABSORBING LIGHT ENERGY from another object.
- TAKES TIME
- Does not give off light right away.
- Keeps giving light when energy source is taken away.
(ex) Glow-in-the-dark items.

CHEMILUMINESCENCE
- The creation and emission of light through a CHEMICAL REACTION.
- Often has LITTLE TO NO HEAT.
(ex) Glow sticks  

Perfume Diffusion

PERFUME DIFFUSION

Jaegar

Abstract: We had different brands of body spray and we calculated how long it took for us to smell it from ten feet. My hypothesis was that yes the class and I would smell all the brands of perfume in a certain time within ten feet.

Procedure: First we marked ten feet down with a measuring tape. Marked it out with duct tape then we all stood on the line. The teacher was on the other line. We had three different types of body spray. She sprayed each perfume about two sprays. After we timed to see how long it would take for us to smell the perfume. When we smelt it we went and wrote our time on our data chart. After the whole class went for a walk and got fresh air for the next perfume. We repeated the procedure two more times.

Conclusion: What happened was that yes I did smell the perfume each time and for every body spray. I found out that some brands were better and stronger then others because u could smell it sooner then others. It was also that some brands spray out more then others witch affected the results. No the fans were not on and yes she did spray each perfume towards us. There was one perfume that did not spray witch was the J-lo. Yes my hypothesis was right because I did smell the perfume in 15 seconds.

Data         

BRAND                                      2 SQUIRTS                            TIME IT TOOK TO SMELL IT

HONEY DO                                YES                                        15

APPLE                                         YES                                        15

VANILLA                                     YES                                        13

How Stuff Moves

Omosis
-The movement of a liquid through selectively permeable membrane.
-Only the liquid is allowed to move through.

Difusion
-The movement of PARTICLES from an area of high concentation to lower concentration.
-High >Low

-Selectively Permeable
-A movement where only CERTAIN materials can pass through.
-Some things can move, some can't. 

Biology