Properties of Water

What is water?

• An atom
• A molecule composed of 2 parts Oxygen and one part Hydrogen
• A molecular compound composed of 2 parts Hydrogen and one part Oxygen
• A pure substance composed of 2 parts Hydrogen and one part Oxygen

Tags

NGSS.MS-PS1-1

Is the density of water ice lower, higher, or the same as liquid water?

• Lower
• Higher
• The same
• Um... what is density again

Why does water ice have a lower density than liquid water?

• Because it floats

• Because it is a crystal

• Because the molecules expand in volume as water freezes into a crystal

• Because ice is colder than water

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-4

What is adhesion?

• Water's ability to stick to itself
• Water's ability to stick to other substances
• The strength of the cohesion of all the water molecules combined
• Tape, glue and other adhesives

Tags

NGSS.HS-ESS2-5

What is cohesion?

• Water's ability to stick to itself
• Water's ability to stick to other substances
• The strength of the cohesion of all the water molecules combined
• Tape, glue and other adhesives

What is surface tension?

• Water's ability to stick to itself
• Water's ability to stick to other substances
• The strength of the cohesion of all the water molecules combined
• Tape, glue and other adhesives

What two elements make up water?

• Helium and oxygen
• Hydrogen and oxygen
• helium and carbon
• oxygen and carbon

Tags

NGSS.MS-PS1-1

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

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Water is a universal solvent because it...

• It can be found anywhere
• It freezes when it gets cold
• floats when frozen
• Dissolves most substances

Tags

NGSS.MS-PS1-2

The tightness across the surface of water that enables paper clips to float is ____________.

• adhesion
• capillary action
• surface tension
• polarity