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Science

Da Science

QuestionAnswer
What percentage of the Earth's surface is covered by water? 70%
A phase change requires an addition or removal of energy in the form of what? Heat
Where does this energy come from on Earth? The Sun
To go from ice to liquid water requires an addition/removal of energy? Addition
To go from water vapor to liquid water requires an addition/removal of energy Removal
What are Natural Resources? A _____________ is a material or substance that occurs naturally in the environment and can be used by people for food, energy, shelter, or other needs. Examples include water, minerals, plants, animals, and air.
What are the three main reasons we discussed why water is so important to the Earth? 1) keeps Earth warm 2) keeps temperature stable 3)biological functions
Explain how gravity and the sun are involved in the water cycle? Sun provides energy to the water cycle that enables the phase changes. Gravity is what controls the physical movement of water through the water cycle.
The earth is 70% water, how come that number doesn't change. The water cycle moves water around over time and doesn’t create or destroy water.
Solid firm and stable in shape; not liquid or fluid.
Created by: Domerap
 

 



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