Exploring Water Properties and the Water Cycle

What is the chemical formula for water?

• H2O2

• HO2

• O2H

• H2O

In which states of matter is water naturally found on Earth?

• Solid, Liquid, Gas

• Solid, Gas, Plasma

• Solid, Liquid, Plasma

• Liquid, Gas, Plasma

What property of water allows it to form droplets on a leaf?

• Capillary Action

• Adhesion

• Cohesion

• Surface Tension

What is the term for the force that pulls water upward through a narrow tube?

• Cohesion

• Adhesion

• Surface Tension

• Capillary Action

What type of bonds hold the hydrogen and oxygen atoms together in a water molecule?

• Ionic Bonds

• Covalent Bonds

• Hydrogen Bonds

• Metallic Bonds

Why is water considered a polar molecule?

• It is less dense in solid form

• It can dissolve many substances

• It has one positive end and one negative end

• It has a neutral pH

What happens to the salt when ocean water evaporates?

• It is left behind

• It forms new compounds

• It dissolves in the air

• It evaporates with the water

What percentage of global evaporation occurs over the ocean?

• 50%

• 60%

• 86%

• 78%

Where is nearly two-thirds of Earth's fresh water stored?

• Rivers

• Lakes

• Underground aquifers

• Polar ice caps, snow packs, and glaciers

Why is clean fresh water considered one of the most precious substances on Earth?

• It is abundant

• It is easy to access

• It is used for industrial purposes

• It is essential for life