Composition of the atmosphere

The atmosphere is a mixture of gases, with 78% nitrogen, 21% oxygen, and the remaining 1% comprising various gases like carbon dioxide, helium, argon, neon, and hydrogen. Water vapor, an essential component, influences humidity and plays a crucial role in weather patterns. Through gravity, the atmosphere exerts pressure and surrounds Earth like a protective blanket. Explore the composition and significance of the air we breathe.

• Atmosphere
• Air composition
• Earths atmosphere
• Gas mixture
• Water vapor

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Uploaded on Sep 26, 2024 | 0 Views

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1. Composition of the atmosphere

2. Composition of the Atmosphere Composition = what something is made of. Air Air is all around us and it behaves often like a liquid- it flows, moves, and causes things to flows, moves, and causes things to happen (weather!) happen (weather!) Air = mixture of dozens of types of gases.

3. Air has MASS!! This means it can exert a FORCE (push) on you! The air that surrounds the planet is held in place by gravity and is called our atmosphere. Gravity becomes less and less as you move away from Earth. As a result, there are fewer and fewer molecules as you move away from the surface.

4. Air!!! The air around us is 78%: NITROGEN 21% of the air around us is: OXYGEN The remaining 1% is a mixture of all other gases: Carbon dioxide, helium, argon, neon, hydrogen

6. Water Vapor Water is present in gas form in the air we breathe. We call this water vapor. The amount of water vapor in the air is called humidity and varies greatly with time and location. Water vapor is an important part of the water cycle and is a driving force in most types of weather.

7. POP QUIZ 1. ________ is a mixture of gases. 2. ________ is a blanket of gases that surrounds a planet. 3. 78% of our atmosphere on Earth is made of what gas? 4. 21% of our atmosphere on Earth is made of what gas? 5. Humidity refers to the amount of water __________ in the air.