WATER

_{What are water's unique properties?}

• It is what humans drink.
• It is everywhere.
• It is clear.
• It can be all 3 states of matter.

What is a water molecule composed of?

• 1 Hydrogen atom and 2 Oxygen atoms
• 2 Hydrogen atoms and 1 Oxygen atom
• 3 Oxygen atoms
• 2 Helium atoms and 1 Oxygen atom

Tags

NGSS.MS-PS1-1

What property of water allows it to be such a versatile solvent that it is often called the "universal solvent?"

• Purity
• Polarity and high surface tension
• High heat capacity
• Expansion upon freezing

Tags

NGSS.HS-PS1-2

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.HS-ESS2-5

What two elements make up water?

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

Tags

NGSS.MS-PS1-1

Why can water have no net charge but have slight charges in different parts of the molecule?

• The oxygen end is slightly negative and the hydrogen end is slightly positive
• The hydrogen end is slightly negative and the oxygen end is slightly positive
• The hydrogen and oxygen ends change in polarity
• Because it is hydrophobic

Tags

NGSS.MS-PS1-1

The property where water can pull itself up tubes or through spaces in paper or fabrics.

• adhesion
• capillary action
• cohesion
• universal solvent

Why can some insects walk on water?

• The water sticks to the insect.
• The insect is too light to break the surface tension.
• The insect has hydrophobic oils on its legs.
• Insects can't walk on water.

What word describes when water is attracted to other substances?

• cohesion
• adhesion
• capillary action
• surface tension

Which is NOT a unique property of water?

• Frozen water floats on liquid water.
• Water covers most of the Earth’s surface and retains a large amount of heat.
• Water molecules stick to each other through hydrogen bonds.
• Water cools very rapidly.