Water Properties - Connection

Multiple Choice

What is water?

• An atom
• A molecule composed of 2 parts Oxygen and one part Hydrogen
• A molecular compound composed of 2 parts Hydrogen and one part Oxygen
• A pure substance composed of 2 parts Hydrogen and one part Oxygen

Multiple Choice

What characteristic is shown in the image?

• Polarity

• Hydrogen Bonds

• Cohesion

• Adhesion

Multiple Choice

Why is water a polar molecule?

• the electrons are unevenly distributed

• hydrogen has stolen an electron from oxygen

• because opposites attract

• oxygen has given an electron to hydrogen

Multiple Choice

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

Multiple Choice

Because water molecules are polar, they are attracted to each other and stick together. What is this bonding called?

• covalent bonds

• hydrogen bonds

• ionic bonds

• isotopic bonds

Multiple Choice

What does it mean to say that water is a "universal solvent"?

• many different kinds of substances can be dissolved into water

• water freezes very quickly

• the solid form of water is less dense than the liquid form

• water is very acidic

Multiple Choice

Water has _____ specific heat. Meaning, it takes _____ time to warm up a large amount of water.

• high/ long 

• high/ short

• low/long

• low/ short

Multiple Choice

Water generally has _______ specific heat than air.

• higher

• lower

• the same

Multiple Choice

Water _________ when it freezes, making it ______ dense.

• expands; more

• contracts; more

• expands; less

• contracts; less

Multiple Choice

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.

Multiple Choice

The picture on the left shows water as a ____________.

• liquid

• solid

Multiple Choice

The picture on the left shows water with ____________.

• a higher density than the picture on the right

• a lower density than the picture on the right

• the same density as the picture on the right

Multiple Choice

The picture on the right shows water with ____________.

• a higher density than the picture on the left

• a lower density than the picture on the left

• the same density as the picture on the left

Multiple Choice

Why does ice float in liquid water?

• The molecules in ice are packed more loosely than in liquid water

• Ice has a higher density than liquid water

• Ice has a lower specific heat than liquid water

• The molecules in ice are packed more tightly than in liquid water

Multiple Choice

The fact that water can stick to other substances is called:

• Ph

• Adhesion

• Cohesion

• Insulation

Multiple Choice

What is cohesion?

• Water's ability to stick to itself
• Water's ability to stick to other substances
• The strength of the cohesion of all the water molecules combined
• Tape, glue and other adhesives

Multiple Choice

Surface tension is caused by ...

• strong cohesion between water molecules
• strong adhesion between the water molecules
• condensation
• water cycle

Multiple Choice

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.

Multiple Choice

Filling a cup of water fuller than the top without spilling is an example of water displaying ____________.

• cohesion

• adhesion

Multiple Choice

When water molecules stick easily to other water molecules, this is called what?

• cohesion
• adhesion
• solution
• polar molecule

Multiple Choice

A drop of water sticking to a windshield is an example of water displaying ____________.

• cohesion

• adhesion

Multiple Choice

A water bug walking across the top of water due to surface tension is an example of water displaying ____________.

• cohesion

• adhesion

Multiple Choice

The tightness across the surface of water that enables paper clips to float is ____________.

• adhesion
• capillary action
• surface tension
• polarity

Multiple Choice

Water creeping up the side of a straw is an example of water displaying ____________.

• cohesion

• adhesion

Multiple Choice

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.

Multiple Choice

Refer to the picture; the water is sticking to the spider web because of:

• Adhesion

• Cohesion

Match

Match the properties of water

• Water sticks to other objects

• Water sticks to itself

• Water ice floats in water.

• strong cohesion between water molecules

adhesion

cohesion

density

surface tension

• adhesion

• cohesion

• density

• surface tension