Density
Systems and Models
Ocean Dead Zones
Carbon Cycle
Convection, Conduction, and Radiation
100
Define Density
The amount of matter in an object.
100
Energy can enter and leave this kind of system but matter can't.
What is a closed system?
100
How are ocean dead zones made?
The lack of oxygen due to phytoplanktin.
100
What is a carbon Source?
Gives out more carbon than it gets.
100
Define Radiation
Transfer of energy through space using electromagnetic waves.
200
Does hot salt water or plain hot water have more density?
Hot Salt Water
200
Energy can enter and leave, along with matter, in this system.
What is an open system?
200
How does oxygen get into water?
Algae and underwater grasses releases oxygen.
200
Carbon Cycle
What is the Circulation from one system from another?
200
Define Convection
Transfer of energy in a liquid or gas.
300
Do items with more or less density sink?
More
300
The geosphere, hydrosphere, and atmosphere are part of this.
What is Earth's system?
300
Why does the dead zone occur in deep water?
Most life lives in the deeper water.
300
What is a carbon Sink?
Absorbs or stores more carbon than it releases.


300
Define Conduction
Transfer of energy through solids and liquids though the collisions of particles.
400
An item has to have more density than what substance in order to sink?
Water
400
Define model
A representation of an object.
400
What do humans do to contribute to ocean dead zones?
They use to much fertelizer and it runs off into the water.
400
What is an example of ways carbon is used?
Plants
400
Heat going from a fire to another object is...
Radiation
500
Does density impact our lives? How?
Density tells us.....
500
What are some things that a system is?
model, studied, seperated by a boundery.
500
How does stratification contribute to the dead zone?
It produces more plants which take oxygen out of the water.
500
Where is Carbon found?
In all living and once living matierial.
500
Heat going through water and causing particles to collide is....
Conduction
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