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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

Water is a universal solvent because it...

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

Capillary Action is key for

• Water moving from roots to leaves in plants

• Air moving from mouth to lungs

• Ice floating on water

• Water moving to lower areas

Tags

NGSS.MS-ESS2-4

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

• adhesion
• capillary action
• surface tension
• polarity

Cohesive means ........

• the water molecules stick to each other

• the water molecules stick to other surfaces

• the water molecules are less dense

• the water molecules are far apart

Adhesive means ........

• the water molecules stick to each other

• the water molecules stick to other surfaces

• the water molecules are less dense

• the water molecules are far apart

Why is water so good at dissolving so many substances?

• it is polar

• it is less dense as a solid

• cohesion

• adhesion

Most of the water on Earth is unusable by humans because it is _______________.

• contaminated (dirty)
• groundwater
• salt water
• stored in glaciers

Tags

NGSS.MS-ESS3-4

As you added drops to the coins, each drop stuck to the other water because of ________________.

• adhesion
• cohesion
• capillary action
• specific heat

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

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