Please enable JavaScript.
Coggle requires JavaScript to display documents.
EVS-8-Air - Coggle Diagram
EVS-8-Air
🧍 Humans and animals
Need oxygen for breathing
Cannot survive without air
Air becomes thinner at high mountains
Mountaineers carry oxygen cylinders
📘 Definition
A mixture of many gases
Present all around us
Cannot be seen but can be felt when it moves
🧪 What does air contain?
🌫️ Gases
Nitrogen
Oxygen
Carbon dioxide
Other gases
All living things need oxygen to live
Plants use carbon dioxide to prepare food
💧 Water vapour
Air contains water vapour
More water vapour present on rainy days
Causes sticky feeling in the air
🧹 Dust
Air contains dust particles
Dust settles on objects over time
Dust comes from the air
🧠 Stepping Stones
Moving clouds in the sky
Caused by moving air
Soap bubbles
Air is present inside bubbles
Fizzy drink bubbles
Gas comes out when can is opened
🌱 Plants
Take carbon dioxide to prepare food
Need water, sunlight and chlorophyll
Take in oxygen for breathing
🌬️ Movement of air
Moving air is called wind
Seen by rustling of leaves
🌐 Atmosphere
Thick layer of air surrounding the Earth
No air present beyond the atmosphere in space
❓ Why do we need air?
All living beings need air for survival