Properties of Water

Front

Why do large bodies of water not quickly fluctuate in temperature?

Back

Water has a high heat capacity.

Front

Why can water striders walk across the surface of calm water without breaking it?

Back

The insects are light enough so they do not break the hydrogen bonds holding the water molecules together

Front

What two elements make up water?

Back

Hydrogen and oxygen

Front

What word describes when water is attracted to other substances? Options: cohesion, adhesion, capillary action, surface tension

Back

adhesion

Front

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

Back

Capillary action pulls the water molecules like a chain

Front

Attractions between water molecules are called

Back

Hydrogen bonds

Front

What property of water helps to moderate earth's temperature?

Back

Specific heat capacity

Front

Why does ice float? Options: 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.

Back

As water freezes, it expands and its density decreases.

Front

Why is water polar?

Back

The unequal sharing of electrons gives the water molecule a slight negative charge near its oxygen atom and a slight positive charge near its hydrogen atoms.

Front

The bond that holds the Oxygen and Hydrogen atoms together in a water molecule is a ________ bond.

Back

Covalent