Water Properties

Front

What is the molecular structure of water?

Back

Water is composed of two hydrogen atoms covalently bonded to one oxygen atom, forming a bent shape.

Tags

NGSS.MS-PS1-1

Front

What type of bond holds the hydrogen and oxygen atoms together in a water molecule?

Back

Covalent bond.

Tags

NGSS.MS-PS1-1

Front

What is the charge distribution in a water molecule?

Back

Water is a polar molecule, with a partial negative charge on the oxygen atom and partial positive charges on the hydrogen atoms.

Front

What property of water allows it to dissolve many substances?

Back

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

Front

What is the term for the attraction between water molecules?

Back

Cohesion.

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.

Tags

NGSS.MS-PS1-4

Front

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

Back

Water can absorb a lot of heat without a significant change in temperature, which helps regulate climate and maintain stable environments.

Tags

NGSS.MS-ESS2-4

Front

What is adhesion in the context of water?

Back

Adhesion is the property of water that allows it to stick to other substances, such as glass or plant tissues.

Front

Why does ice float on water?

Back

Ice is less dense than liquid water because it expands when it freezes, creating a crystalline structure.

Front

What is the role of water in biological systems?

Back

Water is essential for life, serving as a solvent, a medium for chemical reactions, and a means of temperature regulation.

Tags

NGSS.MS-LS2-1