October 28th- Silent Lab

This Friday we did a lab called the "Silent Lab" where we visited different stations set up around the room, followed the instructions that were written on the signs placed next to the lab stations, and recorded our observations. While we did the lab we were not allowed to talk. Most groups didn't finish the lab so we will finish it sometime next week.

Today in class we check our homework on pressure unit. Page 415, 69-71
Then we took a quiz over compared of pressure unit.

Unit	Compared with 1 atm	Compared with 1 Kilopascal
Kilopascal (KPa)	1 atm=101.3
Millimeters of Mercury (mm Hg)	1 atm= 760 mm Hg	1 KPa=7.501
Torr	1 atm=760	1 KPa=7.501
Pounds per square inch (psi or lb/in^2	1 atm=14.7 psi	1 KPa=0.14 psi
Atmosphere		1 KPa=.009869

Then we started our silent labs but didn't get to finish them.

Happy Mole Day!!!

Celebrating 6.02 X 10^23!!!

Happy Mole Day!!

Today we celebrated mole day and learned about what mole is. We also listened to some awesome 80's music and colored pictures of moles. More than one picture was extra credit and we were supposed to give it to a teacher. We ate some goood food too. (:

10-20-2011 Chemistry

Today we worked on the graphs for our Vaporization Lab.
Questions can be found on Mrs. Sorensen's website!!

10-18-11 chemistry

Mrs. Sorensen is gone today.
Online assessments are due @ 3:05 PM today!
Graphs will be used in class tomorrow so have them completed and shared with Mrs. Sorensen on google docs.
Freezing & boiling point graph & Phase diagram worksheet due tomorrow!
Also page 390 in book problem solving lab and worksheet due tomorrow!
Read through pages 404-409 for help.

Chemistry

Period 2

10/17/11

Today in class, we went to the media center. We worked on the assessments that we have to get an 80% on to pass. All three of them are due at the end of the day tomorrow. The people who were finished with the assessments worked on the graphs for the temperatures of different substances. You have to get information from other people with a different substance than you, too. These graphs are also due tomorrow.

Chemistry Class 10/14/2011 - Period 2

Today (Friday) in Chemistry:

*IMPORTANT*: Assessments 1,2,&3 are due on Tuesday now! Mrs. Sorensen fixed the assessments with the graph problems so please re-do them even if you already passed.

We looked over a Gizmo that showed us the time amounts for a pot of water boiling, freezing, evaporating, etc. We also compared our graphs to the graphs we made during the lab yesterday. On the graphs we talked about at what times/temps the melting would occur, the vaporization would occur, the freezing would occur, the evaporation would occur, and where the liquid state is.

We talked about the flubber & ooblek debate. Mrs. Sorensen told us that flubber is a Non-Newtonian Fluid. Which means its a liquid that doesn't act like one. It has some properties of a liquid (takes shape of its container, etc.) The ooblek is the same way. It is a dilatant. So if you put a pencil in it slowly, you will be able to go all the way through the liquid. If you try to pull it out very quickly if will become thick and you wont be able to get it out. The opposite of a dilatant is a thixotropic (examples: ketchup, germ-x, toothpaste.)

Vocab:
Dilatant- more viscous when pressure is applied.
Thixotropic- less viscous when pressure is applied.

LAB:
For the lab today we crushed dry ice and put it in the top of a pipeette. We clamped it shut, then took plyers and squeezed it as hard as we could.

Magazine summmary

"Science World" March 15- April 5, 2010
I read "Tag You're It"
Claire Trombley (Vermont) is a 14 year old girl. She has been tagging birds as volunteer work since she was 11. She goes to Abraham Union High School in Vermont. She was given the Spirit of Community Award for her service two years ago. People who study birds learn more about bird populations around the country. "I think it's interesting that we're getting data about these birds that can help us learn." Claire says.
Some birds that she is collecting data on are birds that are becoming extinct because of industrialization. Over 40 years, some bird species' numbers have dropped a dramatic 68 percent. Most of the birds that Claire bands migrate, which means to move from one habitat to another depending on the season.
The information collected by the volunteers helps orinthologists how populations are changing and how those birds need to adapt to survive. So far, the researchers have found that areas that

Sharks & Apes

Science World 5/10/2010

Predators in Peril
Many shark attack victims are now fighting for protection rights for sharks. Around 60 people each year are attacked by a shark world wide. Bethany Hamilton was 13 when she was attacked while surfing. Now she is a professional surfer even after losing one of her arms. Most victims say that they were in the wrong place at the wrong time, or that sparkly bathing suits or glittery surfboards cause them to look like fish scales to a hungry shark. Almost 38% of sharks are being threatened with extinction. They are constantly caught unintentionally by fishermen that are fishing for other species. Congress is currently trying to pass a bill called the, Shark Conservation Act of 2009. If the bill passes it will be illegal to take the fins off of sharks, they need the whole carcass that way regulators can keep track of how many endangered sharks have been caught.

Snap-Happy Ape
Nonja, an orangutan at the Vienna Zoo in Austria was given a camera that dispenses a raisin everytime she takes a picture. The ape takes pictures around the zoo and of herself. Scientists say that orangutans are very smart and observant, so she figured out quickly she is rewarded when she takes more pictures. Now Nonja has a facebook, where zookeepers uploads the pictures she takes and information about her. She has more then 80,000 friends!

Science Articles

Out On A Limb. January 11, 2010. Butterfly Ears.
The Blue Morpho butterfly have very good hearing. They have ears on their wings about the size of a tip on a pen. Their ears can distinguish different types of noises, such as a bird singing and a bird flapping its wings.

Out On A Limb. January 11, 2010. Talk to the Arm.
Stelios Arcadious had a third ear implanted into his forearm. It can't actually hear things, but he got a microphone placed into it. The microphone caused an infection and had to be removed.

Predator or Prey? May 10, 2010. Achy Snake.
A Pine Snake swallowed 2 burned out light bulbs in a chicken coop. Snakes often swallow indigestible objects because they smell like prey. This snake had the bulbs surgically removed, and was released back into the wild after recovery.

Predator or Prey? May 10, 2010. Shrinking Sheep.
Soay Sheep in St. Kilda have been getting smaller throughout the years. Scientists say it's because of climate change. Smaller sheep used to have less of a chance with the cold than big sheep, but because of the milder winters their size is no longer important.

Predator or Prey? May 10, 2010. Ghastly Baked Goods.
A bakery in Thailand has edible human heads and body parts instead of the goodies you would expect. However, these body parts are all bread. A student uses a special dough recipe to make the bread keep his details and he uses red dye to create the look of blood.

Caught on Camera! April 19, 2010. Living Art.
An online gallery showcases art that is created by bacteria. Eshel Ben Jacob takes pictures of the living bacteria. Bacteria is placed with few nutrients, which causes them to spread out to search for food. He then adds color to create the art.

Caught on Camera! April 19, 2010. Hairy Hearing.
Radhakant Bajpai has hear from his ears so long that he has to comb. He set the Guinness World Record at 13.2 cm long. He inherited the genes to grow long ear hair.

October 12th, 2011

Mrs Sorensen was gone today.
Chemisrty:
We needed to get a magazine from Mrs Sonersens desk and read a total of 16 paragraphs. Then summarize what you read. You need to have at LEAST 12 sentences as a summary.

October 11, 2011 Chemistry p. 2 Cooper

Today in class we took two assessments over States of Matter and Chemical and Physical Properties Assessment. To go on to the next quiz you must get an 80% or higher. You get three chances to take the test but a lot of us didn't have a lot of time so we just got one done.

10/10/11 blog

today we worked on our graphs and talked about the flubber

Thursday Blog

We talked about vaporization, which is a liquid turned into gas/vapor. We are doing a lab here shortly on vaporization of liquids. We plug a easy link, that has a temp. probe attached to it, into a calculator. Click on setup. Scroll down to time graph and hit enter. Click on edit. Put the time between samples at.5 seconds and hit next. Enter number of samples at 240 and click on next. Click on OK. Wrap the small piece of paper towel aroundd the end of the temp. probe and attaach it with small rubber bands. IMPORTANT: that all groups are using the same size piece of paper towel. Its dimensions needed to be 5cm X 5cm. Dip the endd of the temp. probe in the liquid( in beaker) at your lab table for 3 seconds. as soon as you remove the probe click on start and sit the kprobe so it is hanging over the ege of the table. You dont want a ddraft of air hitting the probe so do not move around during this. At the end of the 240 trials, (2 min.), the calculator will stop recording ata on the graph. You can trace your graph by sampling hitting the right arrow. it will tell you your data points (x and y). Record your data points in a table starting with time zero an record everoy 2 seconds what the temp. was. For this lab there werent enough calculators for everyone so there had to be groups of 3 to 5 people. IT was a little chaotic. This lab is very technical with some of its instructons and time settings. If you mess up, you basically have to start over.It was har d for alot of my classmates to figure out everything and to get it all set straight. They had to make SURE that they write down the temp. once it shows up. The temp. is key to this lab. When they think they are done with the lab, they will say so, but in reality there is more to the lab then just putting a temp. probe into liquid and finding one temperature. Its way more complex then what it looked like on paper. Once they figure out the numbers and whatnot they have to make a graph and then explain what happened to the liquid, temperature, and the timing. It was a long lab, and i couldd tell that some of my classmates who didnt pay attention to what they were supposed to be doing, were just sitting around, and letting someone else to do the work. I overlooked emilys paper to see what the data would look like once its been written down, and there was a lot. They also have to contrast and compare the numbers once they are all written down, AND make a line graph of the numbers, and give an explanation about why they did this, what was majorly important, what happened to the temperature andd why. For labs there is always more then just the lab that needs to be done. You can almost always predict that after the lab there is paper work of some kind, questions, and an explanation. Mrs. Sorensen told everyone to concentrate on getting the table of numbers done since we have a limited time, and the graph can be done later. And of course you need all the numbers in order to even make a graph. At the end of the lab they had to take off the paper towel from the probe, and wash the end of it off with distilled water. Mrs. Sorensen suggested that people should wash their hands when they are done as well. It was an interesting lab.

today in class we watched a mythbusters movie. The first clip was the banana peel slip. They first tested one peel and then multiple peels. They tested it blind folded so he wouldnt know when its coming. But both times he didnt slip. After this they found the angle it takes to slip. Incthe end they made a yard full of bannanas. In the end the yard proves it is very slippery and they both fall. The second clip we watched was homemade diamonds. They are trying to find out if you can make diamonds.The first test was to put take four ounces of peanut butter and charcol and microwave it for 60 minutes. the second test was chemical and a little diamond pressure cooked and the last test was melted iron with acid. All tests were busted. The next test double dipping. They are testin to see if all the germs are in the dip.

The first thing we did today in class was look in are books at what makes a solid. We looked at crystalline solid and amorphous solid. Talked about one example of amorphous solid is glass. Amorphous solids absord energy that it comes in contact with. We also talked about liquids. Ice in its solid form is one of the few solids that can float in it's solid form. Looked at the defintion of Viscosity. Had marble races in four different graduated cylinders with four different substances. We can up with that water has less viscostiy then bubble solution, Germ-X and Corn syrup. Bubble solution has less viscocity then Germ-X and Corn sryup and Corn syrup had less viscostiy then Germ-X. We are working in the lab with water and corn starch. We are also watching a video to see how to mix these two into a solid form. For the lab we need thirty millerliters of water and two scoops of Broax. Avoid using cold water in the breakers, it will cause then to break. Pour sixty milliliters of water into a graduated cylinder. Then get a cup of glue, do not pour the glue into the graduated. As your measuring the solution in the graduated cylinder you need to be warming up the broax in a burner. Mix the sixt milliliters of water with the thirty millilters of glue, with food dye and mix. At these point, you should be able to pick up the broax and mix it with the watery glue and you should get a amorphous solid.

October 3, 2011

Today in class we identified the differences between solids, liquids, and gasses. On a sheet of notebook paper we drew how the particles moved and how the particles were arranged. On pages 58 & 59 you can find the pictures of all 3 examples.

• Solids - closely arranged, vibrate slowly


• Liquids - more spread out, more energy ( slide & glide)


• Gases - very spread out, lots of energy, more collisions = pressure

We also talked about the two types of solids :

• Amorphous - unorganized solid


• Crystalline - organized solid

We then tested the the different states of matter in 3 syringes:

• solids have a definite shape and volume.


• liquids have a definite volume but not a definite shape.


• gases do not have a definite volume it's called indefinite volume, you never know how much is in a container unless it is sealed off.

We finished the class with poll everywhere!

• Conductivity is a phisical property!