Air and Breathing Concepts

The video tutorial explains the essential role of air for living organisms, highlighting its invisibility but tangible presence. It covers how air facilitates movement in objects like kites and windmills, occupies space as shown with a balloon, and is crucial for breathing in various organisms. An experiment with cockroaches demonstrates air's necessity for survival, while another with a candle shows its role in burning.

Why can't we see air?

• Because it is too small

• Because it has no color

• Because it is transparent

• Because it is too far away

What is moving air commonly called?

• Gale

• Breeze

• Storm

• Wind

Which of the following can be moved by wind?

• Rock

• Kite

• Car

• Tree

What happens to a balloon when you blow air into it?

• It changes color

• It becomes smaller

• It stays the same

• It becomes bigger

Why do living things need air?

• For sleeping

• For movement

• For breathing

• For eating

Which organ do humans use to breathe?

• Gills

• Lungs

• Air holes

• Skin

What happens to the cockroach in the sealed bottle?

• It grows

• It dies

• It multiplies

• It escapes

What is required for a candle to keep burning?

• Light

• Water

• Air

• Soil

What happens to a candle when covered with a glass jar?

• It goes out

• It changes color

• It burns brighter

• It melts faster

Why does the candle stop burning when covered?

• Lack of heat

• Lack of wax

• Lack of air

• Lack of wick