Water!

What percent of Earth is covered by water and ice?

• 85%
• 90%
• 75%
• 97%

Snow, sleet, hail, and rain are all examples of  ________________. 

• evaporation
• condensation
• accumulation
• precipitation

The water cycle has...

• a beginning and an end. 
• no beginning and no end. 
• only a beginning. 
• only an end. 

What is condensation?

• the change of water from a gas to a liquid. 
• the change of water from a liquid to a gas. 
• the change of water from a solid to a gas. 
• the change of water from gas to a solid. 

What are the three states of water found on Earth?

• solid, liquid & gas
• oceans, lakes & streams
• evaporation, transpiration
• rain, sleet & hail

When water _________, dew and clouds can form.

• Melts
• Evaporates
• Condenses
• Precipitates

Evaporation occurs when water changes into ________.

• transpiration
• snow
• solid
• vapor

Which of the following is the reason why ice can float?

• The air bubbles in the frozen water make it rise.
• The water molecules in ice are closer together and more dense than liquid water.
• When water molecules expand, they take up more space and are less dense.
• All frozen things will float in liquid water.

Water is made up of these two colorless, odorless gases.

• Helium and Oxygen
• Oxygen and Carbon Dioxide
• Hydrogen and Helium
• Hydrogen and Oxygen

The smallest amount of water is called a(n) ________.

• atom
• molecule
• pair
• drop