INTRODUCTION
We began the unit with a funny activity involving an 'empty cardboard box' in which students learned that in fact the box was not empty, it was quite full!... with AIR!
AIR TESTING CENTERS
As an introduction to the properties of air, students took part in air testing centers where they discovered a few key properties of air:
We began the unit with a funny activity involving an 'empty cardboard box' in which students learned that in fact the box was not empty, it was quite full!... with AIR!
AIR TESTING CENTERS
As an introduction to the properties of air, students took part in air testing centers where they discovered a few key properties of air:
- Air takes up space
- Air exerts pressure
- Air has a mass
- Air is composed of various gases
1. Air Learning Centers.pptx | |
File Size: | 1738 kb |
File Type: | pptx |
AIR AND TEMPERATURE
We did a fun activity and cool demo to demonstrate what happens to air when it is heated or cooled.
We learned that:
AIR EXPANDS WHEN HEATED AND THE MOLECULES MOVE FASTER
AIR CONTRACTS WHEN COOLED AND MOLECULES MOVE SLOWER
We did a fun activity and cool demo to demonstrate what happens to air when it is heated or cooled.
We learned that:
AIR EXPANDS WHEN HEATED AND THE MOLECULES MOVE FASTER
AIR CONTRACTS WHEN COOLED AND MOLECULES MOVE SLOWER
air_in_different_temperatures_worksheet.docx | |
File Size: | 16 kb |
File Type: | docx |
AIR IS A FLUID
Our next set of properties to learn were about air being a fluid and its ability to be compressed.
A fluid is a mixture of liquids and gas together. Air is a fluid because it fills the shape of any container (liquid), and it is capable of being compressed ie. squished (which makes it have properties of a gas).
BERNOULLI'S PRINCIPLE
We watched the videos below to help us understand this unique principle that explains why objects can fly.
"Where there is moving air there is low Pressure" this is key to understanding Bernoulli's Principle
http://www.professorgizmo.com/04Bernoulli.html
Below are some diagrams of experiments we explored to see the low pressure of moving air
Our next set of properties to learn were about air being a fluid and its ability to be compressed.
A fluid is a mixture of liquids and gas together. Air is a fluid because it fills the shape of any container (liquid), and it is capable of being compressed ie. squished (which makes it have properties of a gas).
BERNOULLI'S PRINCIPLE
We watched the videos below to help us understand this unique principle that explains why objects can fly.
"Where there is moving air there is low Pressure" this is key to understanding Bernoulli's Principle
http://www.professorgizmo.com/04Bernoulli.html
Below are some diagrams of experiments we explored to see the low pressure of moving air
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Bernoulli's principle" air movement across a surface results in lift http://www.professorgizmo.com/05Bernouli%26Airplanes.html |
FORCES OF FLIGHT
There are four forces we explored:
Lift
Thrust
Drag
Gravity
There are four forces we explored:
Lift
Thrust
Drag
Gravity
PROPULSION
ANIMAL ADAPTATIONS
We spent quite a bit of time learning all about bird and insect adaptations that enable them to fly.
We spent quite a bit of time learning all about bird and insect adaptations that enable them to fly.
adaptations_to_help_make_birds_fly_ws.docx | |
File Size: | 36 kb |
File Type: | docx |
3._bird_adpt-_airfoils-overcoming_ppt.pptx | |
File Size: | 1732 kb |
File Type: | pptx |
WINGS/ AIR FOILS
A key understanding of this unit is for the students to be able to see that wings are designed to create lift; curved on the top and flat on the bottom. This means that air will move faster on the top of the wing create low pressure, while the high pressure on the bottom of the wing will create lift. |
STREAMLINING
Students worked on a lab to demonstrate the effects that an objects shape has on its ability to cut through the air.
Students learned that streamlining and aerodynamic are very similar characteristics and that both are a shape that many man-made and living creatures have in order to cut through air or a liquid.
Students worked on a lab to demonstrate the effects that an objects shape has on its ability to cut through the air.
Students learned that streamlining and aerodynamic are very similar characteristics and that both are a shape that many man-made and living creatures have in order to cut through air or a liquid.
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HOT AIR BALLOONS
Hot air balloons work because as air is heated it becomes less dense than the air on the outside of the balloon. This less dense air rises and helps create lift!
When the pilot is ready to make the balloon descend, they open the flap at the top allowing cooler air to rush in creating more dense air and therefore allowing the balloon to land.
PARACHUTES
Parachutes are used to slow down an object in flight. They are designed to increase surface area to increase drag and air resistance. This slows down the object.
PARTS OF A PLANE AND PLANE MOVEMENT
Hot air balloons work because as air is heated it becomes less dense than the air on the outside of the balloon. This less dense air rises and helps create lift!
When the pilot is ready to make the balloon descend, they open the flap at the top allowing cooler air to rush in creating more dense air and therefore allowing the balloon to land.
PARACHUTES
Parachutes are used to slow down an object in flight. They are designed to increase surface area to increase drag and air resistance. This slows down the object.
PARTS OF A PLANE AND PLANE MOVEMENT
5._parts_of_an_airplane.ppt | |
File Size: | 5195 kb |
File Type: | ppt |
AIRCRAFT VS. SPACECRAFT
Students need to understand what makes an aircraft and spacecraft different- how have engineers adapted the spacecraft to move without air
Students need to understand what makes an aircraft and spacecraft different- how have engineers adapted the spacecraft to move without air
6._propellers_and_aricraft_vs_space_craft.pptx | |
File Size: | 214 kb |
File Type: | pptx |