Scientific Method
A prediction or an educated guess of the outcome of your investigation
What is the hypothesis?
The element with atomic number 7
What is nitrogen?
Materials that allow electrons to move through them easily
What are conductors?
The non-living components of an ecosystem
What are abiotic factors?
Non-renewable energy sources like coal, oil and gas, that produce carbon dioxide when burned
What are fossil fuels?
A type of observation that uses a measurement or a number
What is a quantitative observation?
A pure substance that is made from two or more different elements that are combined together chemically
What is a compound?
The process of rubbing two objects made of different materials together, resulting in two oppositely charged objects
What is charging by friction?
The type of organism that always occupies the first trophic level of a food chain
What is a producer?
The maximum number of electrons that fit in the second energy shell of an atom
What is 8?
The variable that is being tested or measured in an experiment
What is the dependent variable?
The ability of a substance to be stretched into a wire
What is ductility?
A circuit where electrons have more than one pathway to follow
What is a parallel circuit?
The percentage of energy that is transferred to the next trophic level
What is 10%?
A label that lets us know how much energy a product uses and how that compares to similar models
What is an EnerGuide label?
The straight line that represents the overall trend of the data points on a scatter plot
What is the line of best fit?
The outermost electrons of an atom
What are valence electrons?
A device that measures the potential difference between two points on a circuit
What is a voltmeter?
The maximum size of a population that can be supported due to the available resources
What is carrying capacity?
Excess nutrients in an aquatic ecosystem that cause algae blooms and depletes oxygen in the water
What is eutrophication?
The variable that is plotted on the horizontal axis of a graph
What is the independent variable?
An atom that gains or loses electrons and becomes charged
What is an ion?
The unit of measurement for electrical resistance
What is the ohm?
oxygen + glucose --> water + carbon dioxide + ATP
What is cellular respiration?
The scientist who suggested that electrons surround the nucleus in specific energy levels, called shells
Who is Niels Bohr?