Properties of Water

Front

What type of bond holds two water molecules together?

Back

Hydrogen bonds are the weak attractions between the positive end of one water molecule and the negative end of another.

Front

Why can water striders walk on the surface of calm water?

Back

Water striders can walk on water because they are light enough not to break the hydrogen bonds holding the water molecules together.

Front

What is a polar molecule?

Back

A polar molecule is one that has an unequal sharing of electrons, resulting in a molecule with a slight positive charge on one end and a slight negative charge on the other.

Front

What is the solid form of water?

Back

The solid form of water is ice.

Front

What is the gaseous form of water called?

Back

The gaseous form of water is called water vapor.

Front

What is cohesion in relation to water?

Back

Cohesion is the property of water that allows water molecules to stick to each other due to hydrogen bonding.

Front

What is adhesion in relation to water?

Back

Adhesion is the property of water that allows it to stick to other substances, which is why water can climb up a paper towel.

Front

What is surface tension?

Back

Surface tension is the cohesive force at the surface of water that makes it behave like a stretched elastic membrane.

Front

What is the boiling point of water?

Back

The boiling point of water is 100 degrees Celsius (212 degrees Fahrenheit) at sea level.

Front

What is the freezing point of water?

Back

The freezing point of water is 0 degrees Celsius (32 degrees Fahrenheit).