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CAES Unit 6 Notes
Water on Earth Notes
| Question | Answer |
|---|---|
| How many hydrogen and oxygen atoms make up water? | 2 hydrogen and 1 oxygen |
| Water is able to dissolve many substances and is commonly known as | universal solvent |
| What substance will not dissolve in water? | oil |
| What percentage of Earth's water is salt water? | 97% |
| What type of factors determine the type of ecosystem an area has? | abiotic factors |
| The land that drains a particular set of streams and rivers | watershed |
| What are the major rivers that flow into the Chesapeake Bay watershed in Virginia? | Potomac River, Rappahannock River, York River, James River |
| High ground between two watersheds | divide |
| What water habitat is the most productive? | estuary |
| What is the largest estuary in the United States? | Chesapeake Bay |
| Why is it important to keep pollution out of the streams and rivers? | pollution found in the local stream or river eventually flows into the ocean |
| A measurement of pH reads _____ | acidity or basicity of a substance |
| What factors are used to monitor water quality? | temperature, pH, and salinity |
| A measurement of dissolved oxygen reads ____ | relative measure of the amount of oxygen that is dissolved in a given medium |
| A measurement of the total amount of suspended solids is ______ | turbidity |
| A measurement of salinity reads _____ | property of containing salt |
| A measurement of temperature reads _____ | degree or intensity of heat present in a substance or object |
| Name 3 examples of a wetland | bog, marsh, swamp |
| Where is water most likely to be contaminated? | near a cattle farm |
| What is causing the Chesapeake Bay to become cloudy? | increased amount of sediment |
| What is the only substance on Earth that commonly consists in all three states of matter? | water |
| Noodles moving in a heated pot is an example of ____ | convection |
| What percent of Earth's water is drinkable? | 3% |
| What are four main properties of water? | adhesion, cohesion, specific heat, solvent |
| The property that holds molecules of a substance together is called ___ | cohesion |
| The property that holds molecules of different substances together ___ | adhesion |
| The energy needed to heat a substance by a particular amount is called ___ | specific heat |
| A liquid that dissolves substances _____ | solvent |
| What causes sediment to be introduced into watersheds? | erosion caused by land development |
| What does sediment increase in streams, rivers, and the bodies of water into which they flow? | turbidity |
| What can increase the amount of nutrients in water and cause algal blooms? | sediment |
| What area does the Chesapeake Bay watershed cover? | 165,000 square kilometers |
| Another word for turbidity is ____ | cloudiness |
| Water temperature, water depth, amount of light, oxygen content, pH, and turbidity affect the water in a _______ | watershed |
| Water molecules can stick to the molecules of other polar substances, which are said to be ___ | wettable |
| Where is most of the Earth's freshwater found? | frozen in polar icecaps |
Created by:
caes6science
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