Physical Science

Review 3.1 (Gravity) 
Problem pg. 83 

6. Synthesize

 Presicion measurements of the acceleration due to gravity show that the acceleration is          slightly different in different locations on Earth. Explain why the force of gravity is not            exactly the same everywhere on  Earth's surface. Hint: Think about the details on Earth's      surface.

Answer:
Because of different elevations in Earth.

Review 3.2 (Friction) 
Problem pg.89

6. Synthesize

If you push a book against a wall hard enough, it will not slide down even though gravity is     pulling it. Use what you know about friction and newton's laws of motion to explain                   why the book does not fall.

 Answer:
It doesnt fall because you are pushing it to the wall and thewall is pushing it to you, in result are holding the object up so it doesnt fall.

Review 3.3 (Pressure)
Problem pg. 83

6. Synthesize

During cold winters, ice can form on small lakes and ponds.  Many people skates on thin ice and breaks  through it. Why do rescue workers lie flat on the ice instead of walking upright when reaching out to help rescue skater?

Answer:
Because the weight of the rescuer is divide in a bigger area and preasure is less because of this.

 Geometry
 Is a branch of mathematics concerned with questions of shape, size, relative position of figures, and the properties of space.

The basics concepts of geography are:

-Point
 A point has no length, width, or height - it just specifies an exact location. It is zero-dimensional.
Every point needs a name. To name a point, we can use a single capital letter. The following is a diagram of points A, B, and M:

-Line
A line is as wide as a point, infinitely thin, having an infinite number of points, (in a straight row), extending forever in both the directions. Any two lines can intersect at only a single point.

-Line Segments
A line segment, or segment, is a part of a line, which has two endpoints. The endpoints give the line segment a fixed, or finite length.

-Ray
A ray is a line segment that has only one endpoint. A ray is infinite in one direction. That means that it goes on forever in one direction. 

-Midpoints
The midpoint of a segment divides the segment into two segments of equal length. 
The midpoint will be in the middle of A and B. Since M means midpoint.

-Planes
Planes are two-dimensional. A plane has length and width, but no height, and extends infinitely on all sides. Planes are thought of as flat surfaces, like a tabletop. A plane is made up of an infinite amount of lines. Two-dimensional figures are called plane figures.
All the points and lines that lie on the same plane are said to be coplanar.

-Space
Space is the set of all points in the three dimensions - length, width and height. It is made up of an infinite number of planes. Figures in space are called solids.

-Angles
An angle  is a figure by two rays with a common endpoint, and which are not in the same  point.

Pre-Algebra

Operation with integers: Exponents, Subtraction, Addition, Division and Multiplication.
Popplet:
http://popplet.com/app/index.php#/1331731

Pre-Algebra

Tyler and Christina are playing a game in which each player eathjer wins, lose or draw (ties) the winner is awarded 5 points and the loser loses -5 points. If its draw 0 point awarded for the first eight rounds Tyler had tha following results: Lose, win, lose, win, win, lose,win, draw what was christina's  point total for the rounds:

Tyler results:                                                                                      Christina results:
lose -5                                                                                              win 5
win 5                                                                                                 lose -5
lose -5                                                                                               win 5
win 5                                                                                                 lose -5
win 5                                                                                                 lose -5
lose -5                                                                                               win 5
win 5                                                                                                 lose -5

Draw 0                                                                                                 Draw 0

Tyler points:                                                                                           Christina's point:
5                                                                                                            -5

Science

New weeks problem:
National Debt

You have to find the way how much does a child born in 2013 owes at the time of birth.
My opinion is thaty we have to divi de the National Debt that is 25,700,000,000 million, which is around of 10,028,000.

252,262 dolar p/person in 2013

Science

This week's problem:

Why did Kevin Joa falled from the chair when the Teacher  pulled  him?

- I think it is because Kevin's inertia made his body to want to stay in the same place and the it is why he fall down in the same plaxce that he were sitting.