Primary 5 Online Resources: 2015

Saturday, August 15, 2015

Making Pictograph

Hi Primary 5,

Here are some steps to make pictograph

1. Find the clip art pictures on Google, click this to look up the clip art
2. The pictures may vary based on what you need
3. Copy the picture on Ms. word
4. Count how many pictures you will need that represent the data
5. Print them
6 .Cut the clip art pictures and paste them on A4 paper

or you may make it directly on Ms. word like example below

Here is the example of Pictograph

Spread the news :)

Friday, July 31, 2015

Hand out for respiratory system

The Respiratory System

One of the most important elements your body needs is oxygen and the system that brings oxygen into your body is the respiratory system.

Air, which contains oxygen, enters the body through the mouth or nose. It then travels down a tube in your throat called the trachea. You can feel your trachea by touching your neck just above your chest.

Your trachea branches into two parts just before the lungs called the bronchial tubes. Once the air enters the lungs, these tubes continue to branch into smaller bronchiole tubes, ending at small sacs know as alveoli. As this point, the oxygen in the air enters the bloodstream and the carbon dioxide, a waste product from your body, leaves the blood and takes the reverse route out of the body.

How often you breathe is determined by your breathing rate. Your brain sends a signal to take a breath every time the amount of carbon dioxide in your body increases. This happens many times every minute. The signal travels to the diaphragm, a long muscle located under your lungs. The diaphragm pulls down, making the lungs expand which causes air to enter your mouth or nose.

Parts of the respiratory system

1. Lungs

The lungs are the main organs of the respiratory system. In the lungs oxygen is taken into the body and carbon dioxide is breathed out. The red blood cells are responsible for picking up the oxygen in the lungs and carrying the oxygen to all the body cells that need it. The red blood cells drop off the oxygen to the body cells, then pick up the carbon dioxide which is a waste gas product produced by our cells. The red blood cells transport the carbon dioxide back to the lungs and we breathe it out when we exhale

2. Trachea

The trachea (TRAY-kee-uh} is sometimes called the windpipe. The trachea filters the air we breathe and branches into the bronchi.

3. Bronchi

The bronchi (BRAHN-ky) are two air tubes that branch off of the trachea and carry air directly into the lungs.

4. Alveoli

Alveoli are tiny sacs within our lungs that allow oxygen and carbon dioxide to move between the lungs and bloodstream

5. Diaphragm

Breathing starts with a dome-shaped muscle at the bottom of the lungs called the diaphragm (DY-uh-fram). When you breathe in, the diaphragm contracts. When it contracts it flattens out and pulls downward. This movement enlarges the space that the lungs are in. This larger space pulls air into the lungs. When you breathe out, the diaphragm expands reducing the amount of space for the lungs and forcing air out. The diaphragm is the main muscle used in breathing.