RADIOACTIVE HALF LIFE SIMULATION!

this week in chemisty class, my class and i had a labed called radioactive half life simulation. in this lab we used pennies to represend decaied substances. each trial we would start off with 100 pennies, idealy we would expect the number of pennies to decrease by half after each half life.

for example 100, 50, 25, 12,6,2,1.

but it didnn't. we end with 1 in the first trial, 3 in the second trial, and two in the last.

after we finished the lab we made a chart and graph to represent all of out data.

mine came out really good.

thankyou,

mcflurry

DRYY ICEE

today in class mr.olson set up some labs to do with dry ice. the first one was where you filled up a water bottle with dry ice and added water, then put a ballon over it the ballon would inflate. after the balloon was inflated it was extremly heavy because it was soo dense.

another lab witch dry ice was when mr. olsen filled a fish tank sized container with dry ice then the students blew bubbles into the container. the bubbles floated above the dry ice without popping.

the thrid lab was when mr. olson filled a container with dry ice and added water. we used bubble liquid to make a bubble, the dry ice would the slowly make the bubble bigger.

overall it was the coolest lab we have done in chemisty so far.

thank you,
mcflurry

to the power of ten video.

yesterday we watched a video. it was very interresting. we stared with two people on a picnic table and went all the way out past our own galaxy. then we came all the way into an atom on a man's skin.

today we watched the same video but in simpsons form. we stared with the simpsons on there couch and went in to outer space. then we came down onto barts head.

its was cool

-mcflurry

september tenth's lab

today in chemistry class we were given a worksheet and we had to answer the questions with patterns from the periodic table of elements. it was fun, and now i understand how scienctists created and modeled the periodic table. some of the patterns that me and my group came up were with
- size
- number of electrons
- color
- atomic mass number
- the was an element reacts
- metal, nonmetal, metaloid
-characteristics

those were just few of the patters we found on the periodic table of elements.

-mcflurry

chemisty quiz

today Mr.Olson gave my class and I a really hard test. we were given questions like "how many seconds are in 3 years". the following day when Mr Olson returned our quizzes i recived an eff. he went over some on the questions and now i understand how to work out the problems. it was the hardest science test i have ever taken in my life.


and now i am going to go to tutoring to bring my grade up.


-mcflurry

time is the labrotory :)

this week in mr. olsens chemistry class we preformed the measurement in chemistry lab. we took everyday objects and measured them on the pan balance. i was surprised to how much everything weighed. my predictions were quite off. it was soooooooooooooooooooooo coool. some of the items that we measured as a group were pennies, nickles, marble, test tobes and dixi cups.

thanks,
mcflurrrrrrrrrrrrrrry!

pennnnnny lab

Penny lab,

i found the penny lab to be extremly interresting. we took ourdinary copper pennies and made them silver then gold. we used some type of mixture and heated it up. then we placed the silver penny on a flame and it turned gold. following our lab, we were asked questions about the true matireal of the penny. i believe the panny did not change to gold, but it did change to a new color. all in all it was a wonderful expirience.

thank you,
mcflurry21 :)