Properties of Water

What two elements make up water?

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

Which end of the water molecule has a slightly positive charge?

• the oxygen end
• the hydrogen end
• both ends are slightly positive
• neither end is positive

When a molecule has an opposite electrical charge on each end, it is known as what?

• cohesion
• polar molecule
• hydrogen bond
• solution

What word describes when water is attracted to other substances?

• cohesion
• adhesion
• capillary action
• surface tension

When water molecules stick easily to other water molecules, this is called what?

• cohesion
• adhesion
• solution
• polar molecule

Saltwater will freeze __________ as freshwater.

• faster
• slower 
• about the same speed

Water beads up on the surface of a penny because of what property?

• Adhesion
• High Surface Tension
• Universal Solvent
• Changes in Density

Water plays many roles on Earth - choose the roles that water plays on Earth - choose all that apply.

• influences weather

• shapes Earth's surface

• supports life

• supports human activities

What are the unique properties of water? - choose all that apply.

• cohesion

• adhesion

• specific heat

• universal solvent

• unique temperature

________________________ is the energy needed to heat a substance by a particular amount.

• specific heat

• specific temperature

• Universal solvent

• adhesion