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sciencie
| Question | Answer |
|---|---|
| What are the 6 major steps of the water cycle | evaporation,condensation,percipitation,transporation,run off,percolation |
| what is evaporation | Water changing from liquid to gas |
| What is condensation? | Water vapor cooling to form liquid droplets |
| What is precipitation? | Water falling from the sky (rain, snow, sleet, hail) |
| What is transpiration? | Water released from plants into the air |
| 6) Q: What is runoff? | Water flowing over Earth’s surface |
| What is percolation? | Water moving downward through the ground |
| Name 3 personal uses of water. | Drinking, cooling, washing clothes/dishes, showering, watering lawn |
| What happens to 90% ofwater used by cities/industry? | It returns to rivers and lakes as wastewater |
| Is treated wastewater good or bad for rivers? | Usually negative; contains pollutants |
| How much of Earth’s surface is covered by water? | 2/3 or 70% |
| What is desalination? | Removing salt from ocean water to make it drinkable |
| What is a watershed? | The land area that drains into a river system |
| What is a divide? | Ridge separating watersheds |
| What is a tributary? | Small stream feeding into a main river |
| What is the main stream? | The primary river in a watershed |
| Watersheds we live in (small → large)? | White River/Lake → Lake Michigan → Great Lakes → Atlantic Ocean |
| Example of suspended load? | Silt and sand |
| Example of bed load? | Pebbles and rocks |
| Example of dissolved load? | Minerals, salts, ions |
| Effect of stream gradient on discharge? | Higher/steeper gradient → faster flow → greater discharge |
| How does a meander become an oxbow? | River erodes curve; cuts off neck → forms lake |
| What does a braided stream look like? | Multiple channels that divide and rejoin around sediment bars |
| What causes streams to braid? | High sediment load and variable flow |
| Name the five Great Lakes. | Superior, Michigan, Huron, Erie, Ontario |
| What is the Welland Canal? | A canal that lets ships bypass Niagara Falls |
| What water parameter did you study? | dissolved oxygen |
| Why is that parameter important? | It keeps aquatic ecosystems alive and balanced |
| What causes this parameter to change | tempature,poulloutin/decay,water movement,and plant activity |
| Are current levels good or bad? | good |
| What levels are good vs. bad? | above 6mg/L below 4mgL is bad |
| What can we do about it? | redouce pouloutin and keep the water clean |
| What is porosity? | Amount of open space in a rock |
| What is permeability? | How well spaces connect; ability for water to pass |
| Example of impermeable rock? | clay |
| Zone of aeration? | Spaces filled mostly with air |
| Zone of saturation? | Spaces filled completely with water |
| How does a perched water table form? | Water collected on impermeable layer above main water table |
| Example of recharge zone? | Storm drains, old wells, areas near ocean |
| How does a cone of depression form? | Over-pumping groundwater around a well |
| What is a geyser? | An erupting hot spring |
Created by:
Elise43