Exploring the Unique Properties of Water

Mrs. Wilk Kowski explains the properties of water, including its molecular structure, polarity, cohesion, adhesion, surface tension, capillary action, density, solvent properties, heat capacity, and pH neutrality. The video includes lab activities and examples to illustrate these concepts, emphasizing water's role in supporting life on Earth.

What type of bond holds the hydrogen and oxygen atoms together in a water molecule?

• Ionic bond

• Covalent bond

• Hydrogen bond

• Metallic bond

What property of water allows it to dissolve many substances?

• Polarity

• Surface tension

• Cohesion

• Adhesion

What is the term for water molecules being attracted to other water molecules?

• Surface tension

• Cohesion

• Polarity

• Adhesion

What property of water is demonstrated by water forming a meniscus in a graduated cylinder?

• Cohesion

• Adhesion

• Surface tension

• Capillary action

What allows lightweight objects like insects to float on the surface of water?

• Adhesion

• Cohesion

• Surface tension

• Capillary action

What is the process called when water moves up through thin tubes in plants?

• Cohesion

• Capillary action

• Adhesion

• Surface tension

Why does ice float on water?

• Ice repels water

• Ice is the same density as water

• Ice is less dense than water

• Ice is more dense than water

How does water's high heat capacity benefit life on Earth?

• It makes water boil quickly

• It makes water freeze easily

• It keeps temperatures stable

• It makes water evaporate quickly

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Why is water considered the universal solvent?

• It can dissolve non-polar substances

• It can dissolve polar substances

• It cannot dissolve any substances

• It can dissolve gases only

What is the pH of neutral water?

• 14

• 7

• 0

• 4