Welcome back to class. In this class, we will doing a lot of activity, so get ready.
Air is always there, even when we can’t smell it, feel it or taste it.
We can feel the air when it moves and we can see when it moves objects. We breathe in and out air. Air is a natural resource of the environment. Air is all around us. Human beings, animals and plants need air to live, if we couldn’t breathe, we would die.
ACTIVITY
BREATHING IN AND OUT PROCESS
- Take in a deep breath
- Let it out slowly
- Your chest moves in and out.
- If your hand is near your mouth, you can feel air go in out of our mouth or nose.
MAKING AIR MOVE
Wind is everywhere! All over the world, wind is blowing—gently, strongly, wildly. Wind scatters dandelion fluff in spring and blows leaves from the trees in fall. It brings thunderstorms in summer and howling blizzards in winter. A brisk breeze can carry a kite high in the sky; a tornado can uproot trees and knock down buildings.
But what, exactly, is wind? Wind is moving air. All over the world, air—the same air we breathe—is moving. We can’t see it move, because air is invisible. But we know why it moves. It moves because of the Sun.
Wind drives weather all around the world. It can be wild and wonderful and fierce. But wind can also be tamed to provide power for people.
Examples of things that use air to move are: kite, bubbles, sail on yatch, hot air balloons, etc.
EXPERIMENT WITH MOVING AIR
ACTIVITY 1: Make a boat out of a paper, then blow or fan them on water. A shallow large container of water would be needed.
EXPERIMENT WITH BALLOONS THAT AIR OCCUPIES SPACE
Pupils are allowed to get a balloon, and blow air into the balloon. The pupils observe that the air from their lungs enters the balloon and enlarges the balloon. The air is taking up space in the balloon.
USES OF AIR
- It is filled up with balloons and swimming tubes
- It is filled in the tubes inside the tires
- It helps to dry clothes
- It helps to move sailboats and windmills
- It makes the fire burn
- It is used for flying kites
EVALUATION
- What is moving air called? —————————-
- Mention 2 uses of air
- Can you see air? ———————–
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