1. Earth’s Systems and Cycles
For Chapter 3 Test
Study Guide

2. Define heat flow
The transfer of energy from warmer objects to cooler objects

3. How does heat from earth’s interior reach the surface?
By convection

4. Explain the convection current
It’s uneven heating and density differences in the oceans

5. Where does earth get its energy
From the sun

6. Define temperature
It is a measure of the average kinetic energy of an object’s particles

7. Define radiation
The transfer of energy as electromagnetic waves, how energy is transmitted from the sun to Earth.

8. Define conduction
The process by which heat flows from the warmer geosphere to the cooler atmosphere.

9. Define convection
The transfer of energy due to the movement of matter; how most energy moves through the atmosphere and hydrosphere

10. List the forms of sedimentary rock
Organic rock, chemical rock, & clastic rock

11. What words would you use to define the Carbon cycle?
Decomposition and combustion

12. Draw a picture and label the Earth’s layers

13. Evaporation, condensation and precipitation are processes.
Describe water cycle
Evaporation, condensation and precipitation are processes.

14. Describe decomposition
When animals die, phosphorus returns to the soil

15. Describe rock cycle
The processes of weathering and erosion occurs

16. Nitrogen cycle
N2 circulates between air, soil, water and organisms

17. Name the 4 spheres of earth
Atmosphere Geosphere Biosphere Hydrosphere