Unit 1
What variable is changed by the scientist in an experiment?
Independent Variable
What is a region or area where water travels downhill and ultimately drains into a large body of water.
Watershed?
What are the 4 steps in the water cycle?
Evaporation, Condensation, Precipitation, Accumulation.
What percentage of our air is oxygen, nitrogen, and trace gases?
Double Points - What are 2 examples of trace gases?
Nitrogen - 78%
Oxygen - 21%
Trace Gases - <1%
What is the percentage of energy actually used to perform work? Think Light Bulbs
Efficiency
What is the first step in scientific investigation?
Make an observation / Ask a question
What is a place in which the land is covered by water—salt, fresh, or somewhere in between—either seasonally or permanently?
Wetlands
1 students must draw and label an H2O molecule. This includes shape, elements, and positive/negative charges. (click for area to draw)
Draw on the board!
What are the three types of heat transfer?
Double Points - 1 example of each.
Conduction, Convection, Radiation
What is the difference between potential and kinetic energy?
Potential - Stored energy
Kinetic - Energy in motion
How many meters are in a kilometer?
Double Points - Name all the units from Kilometer down to millimeter in order.
1000 meters
Which three watersheds cover all of Virginia?
Chesapeake Bay
Gulf of Mexico
Carolina Sounds
What is the difference between weathering and erosion?
Weathering is the breaking apart of rock or soil while erosion is the removal or it from an area.
If a cloud is cumulonimbus what kind of cloud can you expect?
A big fluffy cloud with rain.
What energy transformation occurs in a flashlight?
chemical > electrical > light/heat
Students are looking to test the height of a soda explosion with mentos. What is a hypothesis of this experiment?
If, more mentos are added, then the explosion of soda will be higher.
What are 3 examples of abiotic and 3 examples of biotic factors in an ecosystem?
Answers will vary.
What is the process by which an entire body of water, or parts of it, becomes progressively enriched with minerals and nutrients, particularly nitrogen and phosphorus?
Eutrophication
Types of Air Masses:
Wet/Cold Air Mass
Dry/Warm Air Mass
Maritime Polar
Continental Tropical
Name all 4 nonrenewable resources and 5 renewable resources.
Nonrenewable - Coal, crude oil, natural gas, nuclear
Renewable - water, wind, geothermal, solar, biomass
What is the scientific notation for the number 50,800,000?
5.08 x 107
What is the difference between point source and non-point source pollution?
Double points for an example of each.
Point Source - Pollution that has discrete discharges, usually from a pipe or outfall
Ex. Industrial factories, Sewage treatment plants, Mining facilities ,Animal Farmland, lights from a city
Non-Point Source - Pollution whose sources cannot be traced to a single point and reach water bodies in runoff
Ex. Leaking septic tank, Car battery in a river, Storm water runoff from heavy rains ,Salt sprayed on street in the winter ,Cigarettes on the ground
What are 3 of the 5 properties of water? and explain them.
Double Points for all 5 properties!!
Water can dissolve.
Water can absorb heat.
Water is transparent.
Water is most dense at 39F.
Water molecules tend to stick together.
What is the difference between climate and weather?
Climate - the average weather in a given area over a longer period of time.
Weather - the state of the atmosphere at a place and time
What are 2 differences between renewable and nonrenewable resources?
1. replenishes/depletes over time
2. low carbon emissions and footprint/ high carbon emissions and footprint
3. expensive and not readily available / cheap and readily available