Chapter 10: Water (Water Cycle & Oceans Part 2)

Where do we find freshwater?

• runoff

• icecaps

• creeks

• streams

• glaciers

How much of our water on earth is freshwater? __ percent

What two paths can water take once it hits the ground?

• 1. Runs over the surface into rivers, lakes, or the ocean

• evaporates directly into water vapor through the sun

• turns into a current that circumnavigates

• 1. Soaks into the Earth and becomes groundwater

What are the two driving forces of the water cycle? ________ and ________

Name a reason that watersheds are important.

What is the difference between point source and nonpoint source pollution?

How does urbanization affect the water cycle?

• worse water quality (pollution)

• impacts the amount of water that gets infiltrated, evaporated, and runoff

• causes flooding, which destroys habitats

• the sun is blocked from greenhouses gases so water can't evaporate

• ocean currents slow down over time

What is the difference between an impervious surface in a rural area versus in an urbanized area?

• there are none in rural places because there's no pollution

• impervious surfaces like streams are more common in urban places

• less water is infiltrated into the ground = urban, most water gets evaporated / infiltrated = rural

• most water is condensed in rural places, but in urban places there is little runoff

What two things do the ocean currents impact? ________ and ________

What would happen if the Gulf Stream collapsed?

• drought & flooding

• all other currents would collapse

• a lot of ecosystems would be destroyed

• change in temperature and weather

• pollution would flow directly into the ocean