Sci Principles
What branch of science studies the relationships between organisms and their environment?
What is ecology?
What percentage of Earth's water is freshwater?
What is about 2.5%?
(closest answers earns points)
What two elements make up carbon dioxide?
What is carbon and oxygen?
What is the name for organisms that make their own food from sunlight?
What are producers (or autotrophs)?
What form of energy is harnessed from sunlight?
What is solar energy?
What law states that energy cannot be created or destroyed?
What is the law of conservation of energy?
-or-
First law of thermodynamics
If a household cuts its energy usage from 1,200 kWh to 900 kWh in a month, what’s the percent decrease?
What is 25%?
What is the common name for a molecule with the molecular formula of C₆H₁₂O₆?
What is glucose?
What is the term for the role a species plays in its ecosystem?
What is a niche?
An electronic device responsible for creating a circuits electrical potential is commonly known as what?
What is a battery?
What is the term for using resources at a rate that does not exceed their regeneration?
What is sustainability?
The U.S. produces about 4.9 pounds of waste per person per day. How much is that per week?
What is 34.3 pounds?
What is the formula for methane, a potent greenhouse gas?
What is CH₄?
More accurate than a food chain, this is a representation of complex interactions involving species specific energy transfer
What is a food web?
Name one renewable energy source besides solar.
What is wind, hydro, or geothermal?
In an experiment, participants/samples that do not receive the experimental condition are known as the what?
What is a control group?
If a tree absorbs 48 pounds of CO₂ per year, how many trees are needed to offset 1 ton of CO₂? (1 ton = 2,000 pounds)
What is approximately 42 trees?
Which chemical pollutant is most associated with thinning the ozone layer?
What are chlorofluorocarbons (CFCs)?
Approximately what percentage of energy is generally transferred from one trophic level to the next?
What is about 10% of energy is passed to the next level?
This term represents the rate at which energy is consumed or produced.
What is power?
What principle explains why adding fertilizer to an ecosystem can reduce biodiversity through algae blooms and hypoxic waters?
What is nutrient enrichment or eutrophication?
A solar panel system produces 7.5 kW and runs 6 hours/day. How many kWh does it generate in 30 days?
What is 1,350 kWh?
What process involves nitrogen being converted to ammonia by bacteria?
What is nitrogen fixation?
What is the term for the process in which ecosystems transform over time, usually ending in a climax community?
What is ecological succession?
Heinrich Hertz’s discovery of a photon’s ability to transfer its energy and ionize an atom was coined this term.
What is the photoelectric effect?