Dynamic Ecosystems
Cycling of Matter and Energy Flow
States of Matter
Chemistry
Potpourri
100
An example of an abiotic factor.
What is Sunlight, dirt, rocks, water, etc.?
100
The source of all energy in an ecosystem.
What is sunlight?
100
State that matter has a fixed volume but a changeable shape.
What is liquid?
100
Cutting, melting, bending, or crushing are examples of this kind of change.
What is a physical change?
100
A model of an element.
What is A or C?
200
Barnacles live on whales allowing them transportation and access to food. The whale is unaffected by the barnacle. They have this kind of relationship.
What is commensalism?
200
The thing being released at number 5.
What is oxygen?
200
Dry ice changing directly to carbon dioxide gas is an example.
What is sublimation?
200
When oxygen and hydrogen gases combine in the correct amounts, the combination yields a new substance, water. The reactants in this chemical reaction are these substances.
What are oxygen and hydrogen?
200
Matter with more than one type of element bonded together is called this.
What is a compound?
300
Bees pollinate fruit trees which provide more fruit for humans. This benefit humans receive from the ecosystem is called this.
What is an ecosystem service?
300
Decomposers feed on this.
What is dead and decaying matter?
300
The point at which matter is in the gaseous phase.
What is the boiling point?
300
When the bonds between matter break and rearrange to form new substances this is occurring.
What is a chemical reaction?
300
The cell organelle needed for respiration.
What is mitochondria?
400
A tick living on a deer is an example.
What is parasitism?
400
The reactants of cellular respiration.
What are oxygen and sugar (carbohydrates/glucose)?
400
Thermal energy going from a warm object to a cooler object is this.
What is heat?
400
Cooking eggs is an example of this kind of change.
What is a chemical change?
400
Flammability, boiling point, reactivity with another substance are all examples of this kind of property.
What are chemical properties?
500
Something that keeps a population from growing too large. Give an example.
What is a limiting factor? (Examples- amount of resources, number of births or deaths, immigration/emigration, etc)
500
Bacteria on the ocean floor use chemical energy to make food. Their role in the energy pyramid is best labeled as these?
What are producers?
500
As you increase the temperature inside of a closed container, the pressure in the container does this.
What is increases?
500
Reactions that absorb heat feel like this to us.
What is cold?
500
The kind of system best for demonstrating the law of conservation of mass.
What is a closed system?