Understanding Water's Structure

What is the chemical formula of water?

• H2O2

• CO2

• H2O

• NaCl

How many hydrogen atoms are in a water molecule?

• 4

• 3

• 2

• 1

What is the shape of a water molecule?

• Triangular

• Bent or V-shaped

• Cylindrical

• Linear

What type of bond holds the hydrogen and oxygen in water?

• Covalent bond

• Ionic bond

• Hydrogen bond

• Metallic bond

Is water a solid, liquid, or gas at room temperature?

• liquid

• vapor

• plasma

• solid

What do we call the process of water turning into vapor?

• Precipitation

• Condensation

• Transpiration

• Evaporation

Can you name one property of water?

• Low boiling point

• High density at all temperatures

• High specific heat capacity

• Insoluble in most liquids

What happens to water when it freezes?

• Water evaporates when it freezes.

• Water becomes more dense when it freezes.

• Water turns into a gas when it freezes.

• Water expands and becomes less dense when it freezes.

Why is water important for living things?

• Water is vital for biochemical reactions, temperature regulation, nutrient transport, and waste removal in living organisms.

• Water is a source of energy for all living organisms.

• Water is primarily used for building structures in plants.

• Water is only necessary for aquatic animals.

What do we call the tiny particles that make up water?

• oxygen atoms

• water molecules

• hydrogen atoms

• H2O compounds