Name:_________________________ Date:________________
Earth Science: Chapter 26 Study Guide
Label the parts of the Sun
1. Core: This is where all the sun's heat and light is made.
2. Radiative Zone: The heat and light move from the core into this layer.
3. Convection Zone: In this layer, the gases move like boiling water.
4. Photosphere: This is the part of the sun we see.
5. Chromosphere: This layer shoots out hot gases.
6. Corona: This layer can only be seen during an eclipse.
It is the atmosphere around the sun.
7. The gases found in the sun are 91% HYDROGEN and 9%
HELIUM.
8. The halo of gases around the sun is called the CORONA.
9. Nuclear reactions occur in the sun’s CORE.
10. The CONVECTION ZONE is where energy is moved to the
surface.
11. SUN SPOTS are dark spots on the Sun’s surface and usually
occur in eleven-year cycles.
12. The inner layer of the sun’s atmosphere, and also the part that we see is
called the PHOTOSPHERE.
13. The RADIATIVE ZONE is the thickest layer of the sun.
14. Huge fiery arms or loops extending from the sun’s surface are called
SOLAR PROMINENCES.
15.FUSION is the combining of a lighter elements to form a
heavier element.
True/False
16. ____T___ The sun is 93 million miles from the Earth.
17. ____T___ The Corona can only be seen during an eclipse.
18. ____F____ The layer that shoots out hot gases is called the Radiation
Zone.
19. ___T__
Solar storms and the Earth’s Magnetic Field create Auroras.
Aristarchus: A GREEK ASTRONOMER, WAS THE FIRST TO
PROPOSE THAT THE EARTH REVOLVES (orbits) AROUND THE
SUN.
Aristotle: GREEK PHILOPOPHER WHO PROPOSED THAT THE
EARTH WAS THE CENTER OF THE UNIVERSE.
Copernicus: POLISH ASTRONOMER WHO DEVELOPED THE IDEA
OF A HELIOCENTRIC, OR SUN CENTERED, SYSTEM.
Galileo: ITALIAN SCIENTIST WHO WAS THE FIRST PERSON TO
USE A TELESCOPE FOR ASTRONOMICAL OBSERVATIONS.
Kepler: DEVELOPED THE THREE LAWS OF PLANETARY
MOTION.
Newton: DEVELOPED THE LAWS OF GRAVITY.
Ptolemy: PROPOSED THAT THE EARTH WAS THE CENTER OF
THE UNIVERSE.
Tycho Brahe: DANISH ASTRONOMER NOTED FOR HIS
RECORDINGS OF THE POSITIONS OF THE PLANETS IN THE
SKY.
Heliocentric means: SUN CENTERED
Geocentric means: EARTH CENTERED
The sun is 4.5 BILLION YEARS OLD