Properties of Water

What word describes when water is attracted to other substances?

• cohesion
• adhesion
• capillary action
• surface tension

A water strider can skate along the top of a pond because:

• covalent bonds result in water cohesion
• hydrogen bonds result in water cohesion (surface tension)
• water striders have adapted to take advantage of water cohesion
• low surface tension of water

What two elements make up water?

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

Tags

NGSS.MS-PS1-1

The attraction that causes water and other liquids to form drops on thin films is called ________________. This is also water’s ability to be attraction to other water molecules.

• adhesion
• capillary action
• cohesion
• surface tension

Why does ice float?

• As water freezes, it expands and its density decreases.
• As water freezes, it takes up more hydrogen from the atmosphere, causing it to have a greater buoyancy.
• As water freezes, air becomes trapped between the hydrogen bonds of water molecules.
• As water freezes, it takes up more oxygen from the atmosphere, causing it to have a greater buoyancy.

Water is a universal solvent because it...

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

Which characteristic of water will allow a paperclip to remain floating on water when the paperclip is gently placed on top of the water?

• adhesion
• surface tension
• solvent properties
• nonpolar

A solvent is...

• a substance into which the solute dissolves
• a compound being dissolved
• a substance that does not dissolve
• None of the above

Tags

NGSS.MS-PS1-2

Which property of water will cause water to bead up on glass?

• Adhesion
• Cohesion
• Ability to dissolve substances
• High specific heat

The measure of how many hydrogen ions are in a solution

• polar molecule
• pH
• universal solvent
• surface tension