Liquids
What is Atmosphere?
A mass of air that surrounds the Earth.
In egg and the bottle what happens?
The air in the bottle heated up and sucked the egg in the bottle.
Air is a ____.
Fluid
What is Expanding?
To take up more room.
You can bend down and have a skin-tight suit.
What is Air Pressure?
The force exerted on the surface of objects by the weight or air particles.
What happened in The Candle?
The candle distinguished because it burnt up all the Oxygen.
Air can ____.
Flow
What is Drag?
Resistance or friction that acts to slow down an object as it moves through a gas or liquid.
You can bend down and wear a skin-tight suit.
What is Aerodynamics?
The science of through air
What happened in A-"Weigh" We Go?
Air has weight so the inflated balloon pulled the meter stick down further than the deflated balloon.
Air can take any _____ in any space.
Shape
What is Compression?
The squeezing of particles of a gas or porous body into a smaller space.
What is air made up of?
Nitrogen: 78%
Oxygen: 20%
Argon: 1%
Trace gasses: 1%
What is Rusting?
A slow chemical reaction that makes Rust or iron oxide.
That happened in Suck It Up?
The straws that had holes would let air in and stop the water.
Hot air ____.
Rises
What is gravity?
A force of attraction that every mass in the universe exerts on other masses.
True or False, cold air expands
False
What is Oxidation?
This occurs when a substance combines with oxygen.
What happened in The Syringe.
You are able to compress air.
The weight of air can ____ on things.
press
What is lift?
An upward force which acts against the force of gravity reducing air pressure on the top side of an airfoil produces lift.
Mass is the amount of matter in an ______.
Object