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Spheres
Chemistry
Systems
Nutrient Cycles
100
What are the Four Earth Spheres and what they are made of
What are: Geosphere: Rock Hydrosphere: Water Biosphere: Life Atmosphere: Air
100
Is water an compound? Why?
Yes. It is composed of Hydrogen and Oxygen.
100
What do you call a process where an event is both a cause and an effect.
Feedback loop
100
What is the law of Conservation of Matter?
Matter cannot be created or destroyed, only transformed.
200
How does plate tectonics influence the characteristics of Earth's surface?
As tectonic plates move, they combine, separate, and recombine-creating and changing landforms
200
What makes a molecule a "macromolecule"?
Its size
200
Describe the effects of a negative feedback loop
It regulates a system
200
How is cellular respiration important for life?
It releases energy.
300
How do greenhouse gases in Earth's atmosphere affect our environment?
Carbon dioxide and other greenhouse gases keep Earth warm enough to support life
300
Why is water called "the universal solvent"
It dissolves a lot of other molecules
300
Describe the effects of a positive feedback loop
It pushes a system to an extreme.
300
Besides bacteria, what is another way that nitrogen can be fixed for plant use.
Lightening
400
Name three processes involved in the water cycle
Evaporation Transpiration cellular respiration precipitation condensation
400
True or False. Cohesion allows water to transport nutrients and wastes in plants and animals
True
400
Which type of feedback loop is more common in nature
Negative
400
Why is phosphorus important to living things?
It is a key component of cell membranes and molecules such as DNA and RNA