SOAR-High Earth System Science
Unit Study Guide 1 for Unit 2
Energy: Currents and Cycles
  Name  ______________________
Date  _______________________
Directions:   This guide will help you organize the information and skills you need for each topic of study.   Complete the sections following your teacher's guidelines.
Activity 2.00 Review of Energy and Density

1.
Form of Energy
Energy Source
It's role in the Earth System
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2.     Think about the marbles in the box activity.   Write a summary explaining how the box and model can be a model of changes in molecular density and movement as energy is added.
 
 
 
 
 
 
 

3.  Summarize ideas about heat and density
 
 Concept
Which heat/density activity showed this idea?
Adding heat energy causes molecules 
to move more quickly. 		  
Adding heat energy to most liquids and 
gases causes them to expand 
(become less dense).		  
Adding heat energy can change the state 
of a gas, liquid, or solid.		  
 
4.  Apply what you learned about density,
Decide if each statement is True or False.

Study the graph showing air density and altitude.   Answer these T/F questions.

a.  Air density is high at low altitudes.
                    __ True
                     __ False 

 b.  There is more space between air molecules at higher altitudes.
                     __ True
                     __ False 
 

c.  There is less oxygen to breathe at the top of a high mountain than there is at sea level.
                     __ True
                     __ False 

d.  When air on the ground becomes warm, it will also become more dense.
                     __ True
                     __ False 
 
 

5.   Use the Density formula  to calculate the density of the air in each balloon.  Show your calculations.
Density = Density = Density =

 
Activity 2.01 Heat and Density

Review the heat and density vocabulary.
 
Activity 2.00 What is Earth System Science?

 
 
Activity 2.00 What is Earth System Science?

 
 
Activity 2.00 What is Earth System Science?

 
 
Activity 2.00 What is Earth System Science?