Stars make energy by the basic process of nuclear _______.
What is fusion?
100
This term is a measure of the void space in given material and is related to the storage and movement of water.
What is porosity?
100
These electrons are located in the outermost shell and are responsible for the chemical reaction properties of each type of atom or ion.
What are valence electrons?
100
Scientist measure the velocity of streams and calculate the cross sectional area to estimate this property.
What is discharge?
100
The majority of evaporation in the hydrologic cycle occurs here.
What is the ocean?
200
These older galaxies are composed primarily of yellow stars and are thought to have slowly evolved through galactic collisions.
What are elliptical galaxies?
200
These aquifers are defined as being overlain by impermeable layer(s) and have the potential to be pressurized.
What are confined aquifers?
200
These figures are used to illustrate valence electrons and paired versus unpaired electrons.
What are Lewis Dot Diagrams?
200
The discharge of a stream is control by gradient and this factor.
What is channel geometry?
200
Parts of the hydraulic cycle where water can stay for long periods is said to have ___________.
What is a long residence time?
300
The approximate distance light can travel in one year.
What is 6 trillion miles?
300
Groundwater moves from areas of higher ______ to areas of lower _________.
What is hydraulic head?
300
In this type of bonding, electrons freely move about in a state of flux.
What is metallic bonding?
300
A steep area on the outside of a meander, where water moves faster and erosion occurs.
What is a cut bank?
300
Most of the world's fresh water resides here.
What is the polar ice caps?
400
The diameter of the Milky Way Galaxy in light years?
What is 100,000 light years?
400
Caves and complex groundwater systems are common in this type of terrain.
What is karst?
400
When atoms give up or capture electrons from the environment they become....
What are ions?
400
These occur in areas where streams rapidly loss velocity and massive amounts of sediment are deposited.
What are deltas?
400
Large amounts of sediment deposited on the sides and at the terminus of a glacier is known as.
What are moraines?
500
These distant energetic galaxies have actively "feeding" black holes at their centers.
What are quasars?
500
A measure of the volume of water that will flow through a unit cross section of material, under a unit hydraulic gradient, for a given time period, usually one day.
What is hydraulic conductivity?
500
The strongest bond where electrons are shared within a molecule.
What is covalent bonding?
500
These flat areas near streams form from the deposition of sediment during high discharge events.
What are flood plains?
500
I have seen large sets of striations on the rocks in Central Park in NYC. This is evidence of....