Water Properties Knowledge Check REDO

There are partial charges within a water molecule which cause water to have special properties. This makes water a ________ molecule.

• Polar

• Nonpolar

• Hydrophobic

• Ionic

When water rises up a thin straw or moves up a tree from the roots to the leaves, it is called _____________.

• Capillary Action

• Surface Tension

• Heat of Vaporization

• Density of Water

Very light insects can sit on top of water because of

• Water's High Heat of Vaporization

• Surface Tension

• Water's High Specific Heat

• Capillary Action

Why does ice float?

• As water freezes, the molecules move farther apart (expands) and the density decreases.

• As water freezes, the hydrogen bonds mix with air and create buoyancy.

• As water freezes, the bonds break, making it float.

• As water freezes, the molecules move closer together, causing the density to increase.

What property allows water molecules to stick to each other to form drops?

• Cohesion

• Adhesion

• Surface Tension

• Capillary Action

Water is the univeral ____.

• solute

• solvent

• solution

Water is a polar molecule because ______.

• It shares electrons equally between oxygen and hydrogen.

• One side of the molecule has a positive charge and the other side has a negative charge.

• It freezes at 0 degrees Celsius

• It forms hydrogen bonds with other water molecules.

Tags

NGSS.HS-PS2-6

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

Tags

NGSS.MS-PS1-2

TRUE or FALSE: Water is MORE dense when it freezes.

• TRUE

• FALSE

When two Hydrogen atoms and one Oxygen atom combine, they form  a water __.

• atom
• molecule
• mixture

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-1

NGSS.MS-PS1-5