Properties of Water

Front

What is cohesion in the context of water?

Back

Cohesion is the attraction between molecules of the same substance, which in water allows droplets to form and stick together.

Front

What is adhesion in the context of water?

Back

Adhesion is the attraction between molecules of different substances, such as water molecules sticking to the surface of a leaf.

Front

What is surface tension?

Back

Surface tension is the property of the surface of a liquid that allows it to resist an external force, due to the cohesive nature of its molecules.

Front

What is capillary action?

Back

Capillary action is the ability of water to flow in narrow spaces without the assistance of external forces, often seen in plants as water moves through roots.

Front

What does it mean for water to be a universal solvent?

Back

Water is called a universal solvent because it can dissolve more substances than any other liquid, making it essential for biological processes.

Front

What is polarity in water molecules?

Back

Polarity refers to the distribution of electrical charge over the atoms joined by the bond, resulting in a molecule with a positive end and a negative end.

Tags

NGSS.MS-PS1-1

Front

How does temperature affect the density of water?

Back

As water cools, it becomes denser until it reaches 4°C; below this temperature, it expands and becomes less dense, which is why ice floats.

Tags

NGSS.MS-PS1-4

Front

What is the significance of water's high specific heat?

Back

Water's high specific heat means it can absorb a lot of heat without a significant change in temperature, helping to regulate climate and body temperature.

Tags

NGSS.MS-PS3-4

Front

What role does water play in chemical reactions?

Back

Water acts as a medium for chemical reactions, facilitating the interaction of reactants and often participating in the reactions themselves.

Front

What is the difference between a mixture and a solution?

Back

A mixture is a combination of two or more substances where each retains its properties, while a solution is a homogeneous mixture where one substance is dissolved in another.