Heat, Pressure and Wind
Presentation
•
Science
•
7th Grade
•
Medium
Standards-aligned
Restie Carullo
Used 6+ times
FREE Resource
11 Slides • 4 Questions
1
Heat, Pressure and Wind
By Restie Carullo
2
High Pressure
=cold air, denser
Low Pressure
=warm air, less dense
Air moving horizontally is called WIND. Air moves due to differences in air pressure.
Air Pressure is affected by temperature.
3
Multiple Choice
Why do warm air rise and cold air sink?
Warm air is less dense than cold air.
Warm air has less mass
than cold air.
Warm air exerts less pressure than cold air.
The average kinetic energy of the molecules in warm air is less.
4
Wind moves from HP to LP.
Local Winds: Sea Breeze
Winds are named after where they come from.
5
Multiple Choice
Land Breeze and Sea Breeze are local winds.
True
False
6
Wind moves from HP to LP.
Local Winds: Land Breeze
Winds are named after where they come from.
7
Multiple Choice
The movement of air during daytime differs from its movement during nighttime.
True
False
8
Sun=Day Time
LaNd Breeze vs. Sea Breeze
Nighttime
9
Global Wind System
10
11
Global Wind Pattern
Principles:
Air moves from High Pressure to Low Pressure
Alternating High Pressure and Low Pressure due to uneven heating of the sun
Due to Earth's rotation wind does not move in straight line, but curves to the right in the Northern Hemisphere and curves to the left in the Southern Hemisphere
12
13
Multiple Choice
Which of the following is NOT a global wind?
Trade Winds
Westerlies
Easterlies
Sea Breeze
14
15
Global Wind Pattern
Let's Practice!
Principles:
Air moves from High Pressure to Low Pressure
Alternating High Pressure and Low Pressure due to uneven heating of the sun
Due to Earth's rotation wind does not move in straight line, but curves to the right in the Northern Hemisphere and curves to the left in the Southern Hemisphere
Heat, Pressure and Wind
By Restie Carullo
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