Properties of Water and Solutions

Water is a universal solvent because it...

• It can be found anywhere

• It freezes when it gets cold

• Floats when frozen

• Dissolves more substances than anything else

A paperclip floating on water is an example of what property of water?

• capillary action

• surface tension

• universal solvent

• specific heat index

What two elements make up water?

• Helium and oxygen

• Hydrogen and oxygen

• helium and carbon

• oxygen and carbon

Tags

NGSS.MS-PS1-1

What word describes when water is attracted to other substances?

• cohesion

• adhesion

• capillary action

• surface tension

Why does ice float?

• As water freezes, the molecules spread out decreasing its density.

• As water freezes, it takes up more hydrogen from the atmosphere, causing it to have a greater buoyancy.

• As water freezes, air gets trapped making it more dense

• As water freezes, it takes up more oxygen from the atmosphere, causing it to be more dense

Which of the following is LEAST likely to dissolve in water?

• nonpolar fats and oils

• polar sugar molecules

• salt made of a positive sodium ion and a negative chloride ion

• all of the substances will dissolve easily in water

Why does water move from the roots to the leaves of plants?

• Water is pushed by solutes

• Capillary action pulls the water molecules up like a chain

• Water is pulled by gravity

• Water cannot move up roots to leaves

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

What is the only substance with a neutral pH of 7?

• Milk

• Orange Juice

• Water

• Blood

Why does ice stay at the top of oceans instead of sinking to the bottom?

•  Ice is colder than liquid water.

• Ice is less dense than liquid water.

• Ice is more dense than liquid water.

• Ice is warmer than liquid water.

Many fish and aquatic plants can survive a cold winter because the layer of ice that forms at the top of the lake insulates the water below and prevents the lake from freezing solid. What unique property of water contributes to this effect?

• Water absorbs heat when it evaporates and forms a gas

• Water expands and becomes less dense when it freezes.

• Water molecules completely separate into ions in solutions.

• Water forms hydrogen bonds with ions and other polar substances.