Alex's Lab Page

Setpember 1st 2013

In the length lab we learned the volume of our locker and the formula of volume; which is L*H*W=V. It dosen't matter whitch side you laid the prism on it's always the same. We also learned the SI unit for legnth, meters.

In the volume lab we mixed two different liquids together, 50 mL each. When we puored them together they didn't equal 100 mL, instead it equaled lower than 100 mL like 98mL. We also found the SI unit for volume, Liters.

In the mass lab we measured the mass of a graduated cylinder empty, then full of yellow liquid. Then we maesured another cyinder empty, then full of blue liquid. We then subtracted the cyinder's mass from the the liquid's mass. We then mixed the liquids together and measured it's mass. We learned SI unit for mass, grams.

October 7th, 2013

Our results from the penny lab didn’t really match any pattern except that the whole numbers are all divisible by six. The result from two pennies on the triple beam balance was 6.23 grams, while four pennies was 12.45 grams. A difference of 6.22 grams, but this does not carry on to the other results.

October 23rd, 2013

My movie notes
https://docs.google.com/document/d/1FHsxjmyIaCGlmfD3bDooqCo5lJAUpnQ4VwOAoe4RC8k/edit?usp=sharing
More Notes
https://docs.google.com/document/d/1nwrtSf2dL2Y8VRmIa3WAMlpqdyF-On5yH_upPpRRT5E/edit?usp=sharing
Dec 5th Racing Cars

Practice
First run: 3.308 seconds
2nd run: 2.904
3rd run: 2.735
4th run:2.852
5th run:2.938
summary: The car does somewhat curve at some points, and goes around 2.9 or 2.8 seconds down the ramp.
potential energy: to find this energy we need to find the weight of the car and how high the ramp is. PE= W * H
Kinetic energy: we need to find the mass of the car and the velocity of the car. Then multiply them together.
the height of the ramp is 5 cm or .05 meters. 5 cm divided by 100 = .05
The mass of the car is 33.8 divided by 1000 = .0338 kilograms
.0338 times a number equal 33.124 newtons
Va trails:
1: 2:
3: 4:
December 12th Friday the 13th -w-
Investigate! page 245 in science textbook:
Temperature of:
Cardboard- Pegboard- Cool- (actual) 21.4
Rock- Tiles- Almost the same as the metal- (actual) 20.2
Plastic- Trays- Cooler then wood- (actual) 21.8
Plastic Foam- Warmish- Warmest- (actual) 24
Metal- Table legs- Very Cold- Coldest- (actual) 23 Degrees
Wood- Cabinets- Cool- (actual) 22 Degrees C
Rock was the coldest
plastic foam was the warmest
temperatures were similar
hands do not measure temperature well, they measure heat
Heat is the transfer of energy between two objects that are different temperatures. Always from high temp to low temp.
Thermal Equilibrium- the point at which two objects reach the same temperature. the objects in the room are at thermal equilibrium with the air in the room
Monday 2013 16th
Test subjects: Will and Zach C.
Will: Tub B
Zach C.: Tub B
Me(Alex): Tub B
Shelby: Tub B
Tub B: 20.0
Tub A: 20.2
Tub B seemed warmer because the hands that were placed in the ice water went to tub B, while the hands in the warm water went to tub A. Causing the genuine pigs to think that tub B was warmer.
Jan 14th
Heating Project
https://docs.google.com/presentation/d/1wl9T0RmcMeVfY7siH-XGaHJJAvmGTO28aiotu7NFCg8/edit?usp=sharing
Another Research Project:
https://docs.google.com/presentation/d/1LUGVAETnm7_4P6xLfIbcpywwKHSZ916-TI9Ly8fNYtU/edit?usp=sharing

Chemical family
My element is plutonium and my family is Actinoids
Halogens is a family of gasses that are non metals and are very reactive
Noble gasses is also a family of gasses that are non metals but they are very nonreactive
Chemical reactions:
https://docs.google.com/document/d/1SJMSznAuKKxuIHRKZfywNXYNRvVnPXJe6Hj35A6C7Rk/edit?usp=sharing