Days 134 & 135

7 x7 Seven Subjects & 7 things I learned                                                Days 134 & 135   April 12, 2013

1.       Math

a. I learned that any variables divided by itself equals 1. Examples: x/x = 1, n/n = 1, y/y= 1

b. I simplified some expressions using variables.

c. I assumed that all variables in the denominators do not equal zero.

d. (-1) (-a) (-b) + -a/ (a) (-b) = -ab + 1/b

e. (-2)(-x) (y) + yz/z = 2xy + z

f. -10 (-a)/ (-5) ab = -2/b

g. -9c (-d)/ 3d divided by c/(-2) = -6

 

2. Science

a. I learned that it is possible to create energy by using water. One way is to harness the natural movement and pattern of the Oceans tides.

b. Another way of creating energy is to store water in a reservoir, then direct the flow of the water to create energy. This is called hydroelectric energy.

c. In both Tidal and hydroelectric energy cases, the movement of water turns turbines to create the electricity.

d. Did you know that hydroelectric energy dates back to 1882.

e. The first hydroelectric station was opened in Wisconsin using the waters of the Fox River.

f. Hydroelectric systems usually require a dam by a steep water valley.

g. Tidal power plants draw on the back and forth movement of the tides. Moving water turns the turbines which, in turn, generate electricity.

3. History

a. I learned that the Nile inspired many great Egyptian science inventions: Like the calendar, paper, boats, and many mathematical formulas.

b. The Egyptians built the pyramids with k=just four simple tools, the lever, the inclined plane, the wedge, and the pulley.

c. I learned that the Pyramids have many rooms and tunnels. One room holds the Pharaohs sarcophagus.

d. I learned that to make the underground rooms and tunnels, the Egyptians worked with caissons, which we still use to construct tunnels today.

e. King Zoser’s pyramid was built about 4,500 years ago, It was the first pyramid ever built.

f. The Great Pyramid of Khufu was the largest Pyramid ever built Its base is as large as ten football fields.

g. There were 2,250,000 stone blocks used to build the pyramid and the pyramid weighs close to 5,000 pounds.

 

4. Language

5. Reading

a. Setting of the story

Time: at night

Place: On a sea coast.

b. The characters: Lee, the young sister of Chen, the fisherman

c. Main characters problem:

She thinks she has lost her brother at sea during the storm.

d. Events: What happens to keep the main character from getting what she wants?

First: The wind blew her lantern light out.

Second: She loses her whistle in the sea.

Third: The wind blocks out the noise of her yelling her brother’s name.

e. How is the main characters problem solved?

She sees a light in the horizon.

f. What is the final scene in the story?

Lee hears Chen calling to her.

g. I really liked reading this story.

6. Writing

a. In writing I learned that many people have strong opinions about issues such as these: justice, money, injustice, family, home, crime, safety, security, waste, education, conservation, and violence.

b. Here are some issues I feel strongly about: Medical issues, Gun laws, conservation/recycling, War threats.

c. I read a letter from a man named, “T. Tavenor” who sated his opinion on the library issue, he said that he volunteered at the school and that it made him furious to see the dark library with only one student working on a computer and the librarian not having enough money to buy new books.

d. T. Tavenor uses an emotional appeal that makes the reader feel made at the school board and sad for the librarian.

e. I wrote a letter in response to T. Tavenor’s:

Dear editor:

When I read T. Tavenor’s I could not believe what I was hearing, how the School board was not allowing time for the kids to go into the library, and even if they did have time, you aren’t providing them with the right books and the supplies they need to do their research. In my opinion you are doing a horrible job preparing these kids for high school where they will have to do their own research. The poor librarian sits in the dark room all day flipping through book catalogs but the school is not allowing her to buy any books for her students. If the school board keeps this up, Students will not only not have a library, but will not have other important classes as well. To these kids you are sending the message that books are not important, is that really the message you want to send?

7. Art