Bio Unit 4 Part 1: Water

Front

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

Back

Capillary action pulls the water molecules like a chain.

Front

What makes water a universal solvent?

Back

Water dissolves most substances.

Front

What is the term for the tightness across the surface of water that enables insects to walk on it?

Back

Surface tension.

Front

Why do water molecules stick together?

Back

One side has a positive charge and the other side has a negative charge.

Front

What is the molecular structure of water, H2O?

Back

Water consists of two hydrogen atoms covalently bonded to one oxygen atom.

Front

What property of water allows it to have a high specific heat?

Back

Water's hydrogen bonds absorb heat, allowing it to resist temperature changes.

Front

What is cohesion in relation to water?

Back

Cohesion is the attraction between water molecules due to hydrogen bonding.

Front

What is adhesion in relation to water?

Back

Adhesion is the attraction between water molecules and other substances.

Front

How does water's polarity affect its interactions with other molecules?

Back

Water's polarity allows it to interact with and dissolve ionic and polar substances.

Front

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

Back

It allows organisms to cool down through processes like sweating.