HOMEWORK #1: Properties of Water

Front

What is an acid?

Back

A substance with a pH less than 7.

Front

What is adhesion in the context of water?

Back

The attraction of water molecules to other substances.

Front

Why does ice float on water?

Back

Because as water freezes, it expands and its density decreases.

Front

What is capillary action?

Back

The ability of water to move through narrow spaces, pulling water molecules like a chain.

Front

How does water help maintain homeostasis in the human body?

Back

By dissolving salts and carrying dissolved carbon dioxide, allowing waste to be removed from cells.

Front

What is cohesion in water?

Back

The attraction between water molecules, which helps them stick together.

Front

What is the pH scale?

Back

A scale that measures how acidic or basic a substance is, ranging from 0 (acidic) to 14 (basic).

Front

What is surface tension?

Back

The cohesive force at the surface of a liquid that makes it behave like a stretched elastic membrane.

Front

Why is water considered a universal solvent?

Back

Because it can dissolve many substances, including salts and gases.

Front

What role does water play in plant transport?

Back

Water moves from roots to leaves through capillary action and cohesion.