Flod notes

Drainage basins

• the area where all the precipitation accumulates is called a drainage basin

• the boundary in between basins is called a drainage divide

• rain falling on one side of the divide goes into one basin, where the rain falling on the opposite side goes into a different basin

• anytime there is t much precipitation in one drainage basin then there well be a flood

• can result from: melting snow, hail, rain water, ice storm or any other combination  

Tracking the Flood

• organisations track early flooding to help plan

• what dams or flood ways need to be built

• what areas are not good for building

• what areas need food relief credits ($)

Entro to Optics

Today we started our new unit on optics. Optics is like light  and ow it is produced and perceived, as well as ow it moves.  One of our topics is what is colour, like if you had to explain it to a blind person what would you say. My explanation was colour is bright or bland, it is on ever thing. You can change the colour of something and fade the colour of a object. that's my explaination but everone's is differant. We did a work sheet show what we all ready now about light. Then we did some notes. 
Biolumiesence
-the creation and the emission of light by living organisms
-caused by chemical reactions
-chemical is turned into light energy

Shot Thru The Heart


         Today we contiued on making our diagrams, each of our five groups have made there title,(mine is Shot Thru the Heart) and started to draw there picture.  Everone has there own varation but are all realitivly the same.  We will be marked on all of the interior and exterior components, a title and the bloods path.  Everything must be colour coded and nice and neat.  To show our interior and exterior we will hace a flipable exterior body.  Here is what we have so far for te interior body.

Perfume Diffusion

Jayden

Abstract:      In this experiment we were testing to see how long it takes for perfume to diffuse. Imagine you are sitting in the middle of the room, and you fart.  We will tell you how long in till the whole class smells it.  My guess is within 10 seconds everyone would smell it.                

Procedure:   In this lab were testing to see how long it takes perfume to travel  ten feet.  So first we collected four perfumes, be sure to test all of them, for we didn’t and one of ours didn’t work. So we will only use three perfumes as a substitute.  Then we marked ten feet across with tape measurer.  Next all of the class stood on one side of the tape and our teacher on the other side. We did a count down so all the stopwatches started at the same time. She sprayed and we all waited in till we smelled it and stop our stopwatches.  We marked down the times and repeated for all our perfumes.  After each test we cleared the room to get some fresh air. Something we didn’t do but should is, get a fan to evacuate the room after the experiment.

Data:            See chart for information

Conclusion: In conclusion we found most take about 15 seconds to diffuse on average.  My hypothesis we would smell it in at least 10 seconds, but it was actually around 15 seconds.  My hypothesis was incorrect.  Some variables we missed are different amount of spray come out per spray.  Maybe there was a roof fan on during the experiment pushing the perfume away, or maybe pushing it to us.  All in all we could have made a few tweaks like a fan but I think we did ok.

Brand                    2 Squirts Sprayed                     Time to diffuse

Honey-do              yes                                           16 sec

Be delicious           yes                                           15 sec

Vanilla                   yes                                           14 sec