Science Benchmark 2 Review

Science: Benchmark #2 Review Water and Watersheds SOL 6.1, 6.5 a-c, e-f

Water is known as a “universal solvent” because - ,[object Object],[object Object],[object Object],[object Object]

B) It can dissolve lots of other substances

The property of water that helps its molecules stick together is - ,[object Object],[object Object],[object Object],[object Object]

H) One side of the molecule is negative and the other is positive.

Which description best describes the ability of the water molecule to show cohesion and adhesion? ,[object Object],[object Object],[object Object],[object Object]

A) The negatively charged oxygen end of the molecule is attracted to the positively charged hydrogen end of the molecule.

Which state of water is composed of molecules that are locked together? ,[object Object],[object Object],[object Object],[object Object]

The state of water that has molecules that move freely past each other is - ,[object Object],[object Object],[object Object],[object Object]

Ice will float in water because - ,[object Object],[object Object],[object Object],[object Object]

G) Ice is less dense than liquid water

When the acids in water dissolve away a rock, ____________ has occurred. ,[object Object],[object Object],[object Object],[object Object]

When water freezes in the cracks of rocks and then small pieces of the rock break off, __________ has occurred. ,[object Object],[object Object],[object Object],[object Object]

All of the following are ways to conserve water except - ,[object Object],[object Object],[object Object],[object Object]

A) Watering the yard in the summer

We need to preserve and maintain our water resources. Which of the following is NOT an important reason to do this? ,[object Object],[object Object],[object Object],[object Object]

H) Water is an important source of recreation.

Where is most of the water on Earth found? ,[object Object],[object Object],[object Object],[object Object]

Where is most of the fresh water on the Earth found? ,[object Object],[object Object],[object Object],[object Object]

When agriculture and human waste is added to watersheds decomposition occurs. What does the decomposition process use up in the water? ,[object Object],[object Object],[object Object],[object Object]

What abiotic factors are important in an aquatic ecosystem? ,[object Object],[object Object],[object Object],[object Object]

J) Dissolved oxygen, salt, water temperature, chemical contaminants

Into what major body of water do the rivers of Tidewater empty? ,[object Object],[object Object],[object Object],[object Object]

Most of Virginia’s largest rivers flow - ,[object Object],[object Object],[object Object],[object Object]

The water from Virginia’s rivers and streams ultimately ends up in the - ,[object Object],[object Object],[object Object],[object Object]

A “divide” as it relates to water systems is - ,[object Object],[object Object],[object Object],[object Object]

F) An imaginary line that separates two water systems

Wetlands are extremely important for- ,[object Object],[object Object],[object Object],[object Object]

An estuary is a - ,[object Object],[object Object],[object Object],[object Object]

G) Place where freshwater meets saltwater

Estuaries are important to healthy watersheds because - ,[object Object],[object Object],[object Object],[object Object]

B) They serve as spawning and nursery areas for lots of wildlife

The Chesapeake Bay is an example of a/an - ,[object Object],[object Object],[object Object],[object Object]

The greatest source of water pollution is - ,[object Object],[object Object],[object Object],[object Object]

When monitoring the water quality of a stream, which measure would be LEAST helpful? ,[object Object],[object Object],[object Object],[object Object]

To help control the nutrient pollution of the Chesapeake Bay watershed, which of the following is a practical solution? ,[object Object],[object Object],[object Object],[object Object]

B) Set limits on how much fertilizer can be used

Recycling is often resisted by industry because - ,[object Object],[object Object],[object Object],[object Object]

The process in which water vapor, a gas, turns into a liquid is called - ,[object Object],[object Object],[object Object],[object Object]

Which of the following, when added to water in large amounts cause water pollution? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

C) fertilizer, hot water, bacteria

During the process of evaporation, liquid water becomes - ,[object Object],[object Object],[object Object],[object Object]

Which of these will cause water to change to ice? ,[object Object],[object Object],[object Object],[object Object]

A) Removing heat from the water

Water is often found as a liquid, but it has two other states. Which variable affects the state of water? ,[object Object],[object Object],[object Object],[object Object]

Science Benchmark 2 Review

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Science Benchmark 2 Review