Unit #1 Review

What characteristic is shown in the image?

• Polarity

• Hydrogen Bonds

• Cohesion

• Adhesion

What property of water allows for water to act as a temperature regulator for the world?

• Cohesive Behavior

• Expansion Upon Freezing

• High Specific Heat

• Universal Solvent

What property of water causes these Alka-Seltzer tablets to dissolve?

• Universal Solvent

• Expansion Upon Freezing

• Cohesive Behavior

• High Specific Heat

This individual is ice fishing. They cut through the top layers of ice to reach the water and fish below. What property of water allows for this to happen?

• Expansion Upon Freezing

• Universal Solvent

• Ability to Moderate Temperature

• Cohesive Behavior

Sweating is an example of what property of water?

• Ability to Moderate Temperature

• Expansion Upon Freezing

• Cohesive Behavior

• Universal Solvent

What word describes when water is attracted to other substances?

• cohesion
• adhesion
• capillary action
• surface tension

Why does ice float?

• As water freezes, it expands and its density decreases.
• As water freezes, it takes up more hydrogen from the atmosphere, causing it to have a greater buoyancy.
• As water freezes, air becomes trapped between the hydrogen bonds of water molecules.
• As water freezes, it takes up more oxygen from the atmosphere, causing it to have a greater buoyancy.

Which end of the water molecule has a slightly positive charge?

• the oxygen end
• the hydrogen end
• both ends are slightly positive
• neither end is positive

Large bodies of water, such as lakes and oceans, do not quickly fluctuate in temperature. What is the reason for this phenomenon?

• Water is an acid.
• Water is a versatile solvent.
• Water has a high heat capacity.
•  Water acts as a buffer.

Why does water move from the roots to the leaves of plants?

• Water is pushed by solutes

• Water is pulled by gravity

• Capillary action pulls the water molecules like a chain

• Water's cohesion causes it to "pull" towards the leaves