grade 9 final fall 1

What type of bond is found BETWEEN water molecules?

• hydrogen bonds

• ionic bonds

• nonpolar covalent bonds

• polar covalent bonds

Cohesive force between water molecules and adhesive force between water molecules and other molecules enable this phenomenon __________________ occur.

• surface tension

• capillary action

• float on water

• photosynthesis

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

What word describes when water is attracted to other substances?

• cohesion
• adhesion
• capillary action
• surface tension

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

The fact that ice floats on liquid water is due to the fact that water's solid is ___________ than it's liquid form

• less polar
• more polar
• less dense
• more dense

Which statement explains why water molecules stick together?

• both sides are negative
• one side has a positive charge and the other side has a negative charge
• one side has a negative charge adn the other side has a neutral charge
• both sides are positive

Large bodies of water help to keep nearby climates from being too hot or too cold  because they...

• absorb heat in the spring and slowly release that heat in the fall
• absorb heat in the fall and slowly release that heat in the spring
• absorb heat in the summer and slowly release that heat in the winter
• absorb heat in the winter and slowly release that heat in the summer

What is being produced during photosynthesis?

• sugar and oxygen
• sugar and carbon dioxide
• glucose
• gases

What gas is TAKEN IN during photosynthesis?

• argon
• nitrogen
• oxygen
• carbon dioxide