Properties of Water

Front

What is cohesion in water?

Back

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

Front

What causes water molecules to stick together?

Back

Water molecules stick together because one side has a positive charge (hydrogen) and the other side has a negative charge (oxygen), creating polar molecules.

Front

Why do large bodies of water have a high heat capacity?

Back

Water has a high heat capacity because it can absorb a lot of heat without a significant change in temperature, which helps regulate temperature in large bodies of water.

Front

What does it mean that water is a universal solvent?

Back

Water is called a universal solvent because it can dissolve most substances, making it essential for many chemical reactions.

Front

What is adhesion in water?

Back

Adhesion is the property of water that allows it to stick to other substances, which is important for processes like capillary action.

Front

What is the significance of water's high surface tension?

Back

Water's high surface tension, caused by cohesion, allows small objects to float and enables insects to walk on water.

Front

How does water's density change when it freezes?

Back

Water expands and becomes less dense when it freezes, which is why ice floats on liquid water.

Tags

NGSS.MS-PS1-4

Front

What role does water play in temperature regulation?

Back

Water helps regulate temperature in the environment and in living organisms due to its high heat capacity and ability to absorb heat.

Tags

NGSS.HS-ESS2-5

Front

What is the pH level of pure water?

Back

The pH level of pure water is 7, which is considered neutral.

Front

How does water's polarity affect its properties?

Back

Water's polarity allows it to form hydrogen bonds, leading to unique properties like cohesion, adhesion, and high heat capacity.