Water on Earth
What is the process by which liquid water turns into a gaseous state?
Evaporation
What are smaller rivers that feed into main rivers called?
tributaries
People can obtain groundwater by drilling a ___________ below the water table.
well
wetland
What is a large stream of moving water that flows through the oceans?
current
What percentage of Earth is fresh water?
3%
What is the largest river system in the United States?
Mississippi River
What is an underground layer of permeable rock that holds water and allows it to flow called?
Aquifer
What is the famous wetland in Florida called?
Everglades
What is the density of a substance if its mass = 48kg and its volume is 8L?
6kg/L
What process do plants use water for to make their food?
Photosynthesis.
What formed in depressions created by ice sheets that melted at the end of the Ice Age?
What is the top of the saturated zone called?
water table
What are the two major types of wetlands?
Freshwater and Coastal
What causes deep currents to form near the poles?
Density Differences of Ocean Water
Draw a water molecule. Label the elements and their charges.
Hydrogen-2 (positive)
Oxygen-1 (negative)
List at least two differences between ponds and lakes.
Ponds-shallow, sunlight reaches the bottom, small
Lakes-deep, sunlight does not reach bottom, large,
What is the largest category of water usage in the United States?
Industry
What are the three types of Freshwater Wetlands?
Marshes, swamps, and bogs
In what way does the Coriolis effect cause currents to rotate in the Northern and Southern Hemisphere?
Southern - counterclockwise
Northern - clockwise
What state uses the most water per day per person?
California
Explain the process of eutrophication.
nutrients build-up
The algae layer becomes thick and blocks sunlight
plants die
Decaying materials pile up
the area fills with plants
What types of soil, as listed in the book, are permeable, and what type of soil is impermeable?
permeable - gravel/sand
impermeable - clay
Give a reason why wetlands are important to wildlife and a reason wetlands are important to people.
wildlife-rich supply of nutrients, provide habitats for many living things, sheltered waters
people-natural water filters, help controls floods, bysorb extra runoff
Gulf Stream