Properties of Water

Which of the following makes up a molecule of water?

• one atom of oxygen, two atoms of hydrogen

• one atom of hydrogen, two atoms of oxygen

• one atom of chlorine, one atom of sodium

• one atom of hydrogen, one atom of oxygen

Tags

NGSS.MS-PS1-1

Ice floats on water because

• adhesion

• cohesion

• water expands when it freezes

• water shrinks when it freezes

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Large bodies of water do not quickly fluctuate in temperature. Why?

• Water is a solvent.
• Water has a high heat capacity.
• Water acts as a buffer.
• Water is non-polar.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What word describes when water is attracted to other substances?

• cohesion
• adhesion
• capillary action
• surface tension

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

• Water is pushed by solutes
• Capillary action pulls the water molecules like a chain
• Water is pulled by gravity
• Water’s cohesion causes it to “pull” towards the leaves

Tags

NGSS.MS-ESS2-4

Attractions between water molecules are called

• Covalent bonds
• Ionic bonds
• Polar bonds
• Hydrogen bonds

Tags

NGSS.MS-PS1-1

Which is NOT a unique property of water?

• Frozen water floats on liquid water.
• Water covers most of the Earth’s surface and retains a large amount of heat.
• Water molecules stick to each other through hydrogen bonds.
• Water cools very rapidly.

Tags

NGSS.MS-PS1-4

What property of water helps to moderate earth's temperature?

• adhesion
• chohesion
• Specific heat capacity
• Latent heat of vaporization

Tags

NGSS.MS-ESS2-4

NGSS.MS-PS3-4

What is the chemical formula for water?

• H20
• h₂o
• H₂O₂
• H₂O

Tags

NGSS.MS-PS1-1

Many fish and aquatic plants can survive a cold winter because the layer of ice that forms at the top of the lake insulates the water below and prevents the lake from freezing solid. What unique property of water contributes to this effect?

• Water absorbs heat when it evaporates and forms a gas

• Water expands and becomes less dense when it freezes.

• Water molecules completely separate into ions in solutions.

• Water forms hydrogen bonds with ions and other polar substances.

Tags

NGSS.HS-ESS2-5