Properties of Water

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 ice float?

Back

As water freezes, the molecules spread out decreasing its density.

Front

Why is water considered a universal solvent?

Back

Dissolves more substances than anything else

Front

Which of the following is LEAST likely to dissolve in water?

• nonpolar fats and oils
• polar sugar molecules
• salt made of a positive sodium ion and a negative chloride ion
• all of the substances will dissolve easily in water

Back

nonpolar fats and oils

Front

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

Back

Capillary action pulls the water molecules up like a chain

Front

A(n) ______ is a substance with a pH less than 7 Options: Acid, Alkaline, Base, Buffer

Back

Acid

Front

A(n) _______ is a substance with a pH greater than 7.

Back

Base

Front

What is the only substance with a neutral pH of 7? Options: Milk, Orange Juice, Water, Blood

Back

Water

Front

Which property of water enables it to move from the roots to the leaves of plants? Options: Water expands as it freezes., Water is an excellent solvent., Water exhibits cohesive behavior., Water is able to moderate temperature.

Back

Water exhibits cohesive behavior.