Properties 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

In a water molecule the hydrogen and oxygen atoms hold together by sharing _________.

• protons 
• neutrons
• electrons
• nuclei

Tags

NGSS.MS-PS1-1

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

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

• cohesion
• adhesion
• solution
• polar molecule

Tags

NGSS.MS-ESS2-4

Water is a universal solvent because it...

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

Tags

NGSS.HS-ESS2-5

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

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

What is the chemical formula for water?

• H20
• h₂o
• H₂O₂
• H₂O

Tags

NGSS.MS-PS1-1

What is surface tension?

• Water's ability to stick to itself
• Water's ability to stick to other substances
• The strength of the cohesion of all the water molecules combined
• Tape, glue and other adhesives

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

Tags

NGSS.HS-PS1-3