Wednesday, April 21, 2010

The digestive system

The parts of the digestive system consist of:-

The mouth
The esophagus
The stomach
The small intestine
The large intestine
The Pancreas
The liver

The digestive system is mainly split into two parts, mechanical digestion, and chemical digestion. In the mouth, both of theses types occur. The jaws show physical attributes while biting, and an enzyme which is saliva is obtained to contaminate the food and split the carbohydrates. The food then travels down the esophagus into the stomach, where enzymes are freed including hydrochloric acid to contaminate into liquid. It then travels to the small intestine where all proteins are gathered with the help of the liver and pancreas. Nothing is left then but the waste and water, which are obtained at the large intestine, and so the waste travels through the anus, while the sugar and protein are being absorbed in the blood.

Saturday, April 17, 2010

What is My MYP Grade?

My MYP grade was satisfactory, but not the same as last term, my level decreased by a few points, and i was one point away from a 7. My MYP term decreased this year because of one grade in criteria C, a one world essay.

Hello,
Abdulrahman has done satisfactorily well this term, he passed all assignments and achieved outstanding grades in some other assignments. Although his grades are good, he could have achieved grades much higher if he gave one hundred percent of his effort and focus on his work, which would then create better quality of each work he hands in.

Thank you, Sincerely
Mr.Hallawa

The Mouth

The mouth crushes the food and emerges it into smaller pieces so it can travel through the esophagus. The mouth contains the most mechanical digestion in the body, and so starts the digestion process.The saliva is created to make the food travel easier through the esophagus down to the stomach, and so, that is the accomplishment of the mouth in the digestive system.

Sunday, February 28, 2010

The Three Laws

Law 1: Every object is still unless a force is caused and produces the objects acceleration. Force is caused by the movement that interacts with the object that was still.

Law 2: The relationship between mass, force, and distance, and how they are put in a formula to calculate a desired mass, or force, or distance.

Law 3:Every action and force caused to produce that action, there is always an opposite force caused when a normal force is caused, which makes the action balanced.

Sunday, February 21, 2010

Science-Worksheet Questions

1. A) What is meant by doing work?
Using a force to move an object
B) What is meant by a machine?
A machine is anything which makes it easier to do work

2. A) Yes
B) Yes
C) Yes
D) No
Explain: Riding a bicycle, cleaning your teeth mowing the lawn, all include movement, and every movement contains force, while reading this page doesn’t cause movement to the paper because its still, producing no force at all.

3. Chemical energy needs to be supplied for the body so it may work properly, proper foods may supply that chemical energy
4. Machines are what they referred to because they make work easier, some work may not be done by humans bare hands, and so machines are created to make that work easier, they are also referred as Simple Machines.
5. Pulleys, Wedge, Levers.

P.81 Q1-4
1. A wheel and a Rope.
2. Using the pulley he can pull down the rope and lift up the car engine.
3. The chain transmits force into the back; the wheels are then turned by the force transmitted.
4. Low gear presents more wheels being used so less forced may be produced at the crankshaft but the same amount of force is being transmitted to move the wheels.

Machines, relation with work, force

Machines, have a great relation with work. Human beings use machines, simple machines, machines make work easier, making people create small force on their side, but great force is produced on the other side, causing the desire of the human beings work and job. Force is first created and done by the human, but through the machines mechanical privileges, creating great force and work on the other side, giving humans the advantage of achievement of what they are seeking.

Monday, February 8, 2010

Force-Questions

1)What is Force
A Force is a push or pull

2)Four Different kinds of force and examples?
Gravity
Magnetic Forces
Friction
Contacts
Field Force

3)What are the units of Force?
Newtons

5)What is the equation of Force?
Force=Mass x Acceleration

Sunday, January 31, 2010

Moments

Moments of Force = Force x Distance from pivot to the force.

/ = Divide

1. a) Ax0.40 = 0.30 x 2N
A(0.40) = 0.6N(0.30)
A(0.40)/0.40 = 2N(0.30)/0.40
A=1.5

1. b) 4N x 0.25m = 0.20 x B
4N(0.25m)/0.20 = 0.20B/0.20
5N=B
B = 5N

2. a) C(0.25) = 4N(0.15)+1N(0.40)
C(0.25) = 2N + 0.4N
C(0.25)/0.25 = 0.2.4N/0.25
C = 9.6N

2. b) 5N x 0.40 = 1N(0.20) = D(0.30)
2N = 0.2N + 0.3D
2N - 0.2N = 0.3D
1.8N/0.3 = 0.30/0.3
6N=D

3)1N/0.25 = 0.24W /0.25
w = 4N

Saturday, January 23, 2010

Food Web Project (My Food Web)



1. Cactus Fruits, Flowering Plants
2. Insects, Small Mammals,
3. Road Runners, Coyotes, Eagles, Scorpions.
4. Destroying both species would affect the environment. Many other animals depend on these two animals, and so that would cause a imbalance in the whole ecosystem causing extinction of some species in the ecosystem.
5. Commensalism, for the seed is not hurting the coyote in any way, and gaining its will of transporting away.

Monday, January 18, 2010

Food Chain HW

Food Chain Homework


1.
Squirrels (and other Rodents), Insects, Pronghorns and other gazers.
Badgers
Lizards (and other small reptiles) and Bats
None

2. Their Prey would multiply at a very high rate, and that prey would then consume all the food at a very fast speed and rate and the food would be done at a quick stage, leaving the wolfs prey hungry and starving leading them to extinction and dying.
3. If the population of the lion increases, the same process would occur. Their food is consumed too fast and leaves them with the outcome of no food.
4. Not all the creatures in the food chain eat this particular plant, but depend on other foods and plants, which makes these animals go through starvation and die, which corrupts the whole food chain and the ecosystem above it.