Water Properties

What makes water molecules stick to other things?

• Their density

• Their polarity

• Their color

• Their size

What property of water allows it to form droplets?

• Adhesion

• Cohesion

• Evaporation

• Condensation

What allows water to move up through a straw?

• Surface tension

• Capillary action

• Evaporation

• Condensation

Which of the following is NOT a result of surface tension?

• Small objects floating

• Water forming droplets

• Water moving up a straw

• Water forming a stretchy skin

Which of the following substances is likely to be hydrophilic?

• Wax

• Oil

• Sugar

• Plastic

What is a common characteristic of hydrophobic substances?

• They dissolve in water.

• They attract water molecules.

• They repel water or don't mix with it.

• They have polar areas.

What type of substances have charges that attract water molecules?

• Hydrophobic

• Non-polar

• Hydrophilic

• Neutral

What is the main reason hydrophilic substances dissolve in water?

• They are non-polar.

• They have no charge.

• They have charges or polar areas.

• They repel water.

Match the following properties of water.

• solid ice floats on liquid water.

• Density

• Molecules stick to another substance.

• Cohesion

• Water molecules stick to each other.

• Polarity

• Water dissolves a lot of substances.

• Adhesion

• Hydrogen is + and oxygen is -

• universal solvent