Solutions and Water

^{_{This photos shows water molecules in which state of matter...}}

• Solid
• Liquid
• Gas

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

_{Which of the following describes water molecules in the liquid state?}

• Water molecules that are not moving at all.
• Water molecules that are moving at an extremely rapid rate.
• Water molecules that are broken apart a little bit and moving slightly.
• Water molecules that are made of hydrogen and oxygen.

Tags

NGSS.MS-PS1-4

_{This photo shows water molecules in which state of matter?}

• Gas
• Liquid
• Solid

Tags

NGSS.MS-PS1-4

What word describes when water is attracted to other substances?

• cohesion
• adhesion
• capillary action
• surface tension

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

The attraction that causes water and other liquids to form drops on thin films is called ________________. This is also water’s ability to be attracted to other water molecules.

• adhesion
• capillary action
• cohesion
• surface tension

molecule in which opposite ends have opposite electric charges

• cohesion
• polar molecule
• hydrogen bond
• solution

A molecule with electrically charged areas is called a _______________.

• magnet
• polar molecule
• solution
• electrical molecule

Tags

NGSS.MS-PS2-3

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 droplets take a spherical shape (as pictured) because of ____________

• adhesion
• cohesion
• capillary action
• solubility