Grade 6 Science

Subtitle

Air & Aerodynamics
Click here for Study Guide.

Air Exerts Pressure
Air moves to an area of high pressure to an area of low pressure.

Air exerts pressure: about 14.7 pounds per square inch of it.  Watch what happens when the inside of a tanker car is steam cleaned, and then the hatch is closed.  The tanker is literally crushed by the atmosphere.


The same happens in science class with a 55 gallon steel drum.

Bernoulli's Principle

Bernoulli's Principle states that as the speed of a fluid increases, the pressure it exerts decreases.

Demonstrations of how Bernoulli's Principle works.

When the demonstration calls for a leaf blower and a beach ball, it has to be good!

More experiments to demonstrate Bernoulli's Principle: made by a student, for students.

Demonstrations of how a spoiler and wing can actually help a car move faster by making it more aerodynamic. Spoiler alert!

Air Experiments

Did you miss a day or two when we did the Air Experiments in class?  Check out these videos to see what happens when you perform them.  Click here to subscribe to my playlists.


Air Experiments Logbook can be found by clicking here.

The "answers" to the logbook can be found by clicking here.



Experiment #1 - Air is Everywhere

- Air takes up space

- Air exerts pressure


Experiment #2 - Diving Paper

- Air takes up space


Experiment #3 - Huff N' Puff

- Air takes up space


Experiment #4 - A-Weigh We Go

- Air has weight


Experiment #5 - Magic Seal

- Air exerts pressure


Experiment #6 - Feel the Force

- Air movement across a surface results in lift

(In the case in the video, lift is acting to the right.)


Experiment #7 - Taking the Plunge and Pull Back

- Air is a fluid and is capable of being compressed

- Air takes up space

- Air exerts pressure


Experiment #9 - Crushing Air

- Air molecules move from an area of high pressure to low pressure


Experiment #12 - Ball In A Funnel

- Bernoulli's Principle


Experiment #13 - Balloon Behaviour

- Bernoulli's Principle


Experiment #15 - Blowing In The Wind b) Sinking Bridge

- Air exerts pressure

- Bernoulli's Principle

- Air moves from an area of high pressure to low pressure


Experiment #17 - Gone to Rust - Play this at double speed, or skip ahead by 5 seconds at a time to notice what is happening.

- Air is composed of different gases (oxidation proves the existence of oxygen)


Experiment #18 - A Slow Burn

- Air is composed of different gases (combustion proves the existence of oxygen)


Experiment #21 - A Touch of Lime

- Air is composed of different gases (this proves the existence of carbon dioxide)


Experiment #?? - Spinning Spiral

- Hot air rises


Experiment #?? - Windy Race Cars

- Streamlining reduces drag


Experiment #?? - Spraying Water

- Air molecules move from an area of high pressure to an area of low pressure

Experiment #?? - Fast Air Around an Obstacle

- Bernoulli's Principle


Experiment #?? - Bouncy Balloon

- Air takes up space

- Air is a gas and is capable of being compressed


Experiment #?? - Floating Ping Pong Ball

- Bernoulli's Principle


Experiment #?? - Sinking Eye Dropper

- Air is a fluid and is capable of being compressed


Experiment #?? - Box Blows Out Candle

- Air is a fluid and is capable of being compressed



How Do Birds Fly?

"Mr. Kerr, What Will We Be Learning in our Air & Aerodynamics Unit?"

Understandings - Topic A: Air & Aerodynamics


Students explore the characteristics of air and the interaction between moving air and solids. They learn that air is a compressible fluid, that it is composed of many gases, and that moving air can support solid materials in sustained flight. By studying birds and airplanes, they learn a variety of adaptations and designs that make flight possible and that provide for propulsion and control.


General Learner Expectations

Students will:


6-5 Describe properties of air and the interactions of air with objects in flight.  


Specific Learner Expectations

Students will:

  1. Provide evidence that air takes up space and exerts pressure, and identify examples of these properties in everyday applications. 
  2. Provide evidence that air is a fluid and is capable of being compressed, and identify examples of these properties in everyday applications.
  3. Describe and demonstrate instances in which air movement across a surface results in lift- Bernoulli's principle. 
  4. Recognize that in order for devices or living things to fly, they must have sufficient lift to overcome the downward force of gravity. 
  5. Identify adaptations that enable birds and insects to fly. 
  6. Describe the means of propulsion for flying animals and for aircraft. 
  7. Recognize that streamlining reduces drag, and predict the effects of specific design changes on the drag of a model aircraft or aircraft components.
  8. Recognize that air is composed of different gases, and identify evidence for different gases. Example evidence might include: effects on flames, the "using up" of a particular gas by burning or rusting, animal needs for air exchange.

Submit your

Getting Off the Ground Project

by clicking here.

Note: EACH group member MUST submit their project.