1. Chapter 3 and 4 Astronomy Test
Tuesday- January 27th, 2015

2. Describe the aspects related to the sun:
Core-
Photosphere-
Nuclear Fusion-
Corona-
Sunspots-
Solar Flares-

3. Geocentric Model
Explain the Geocentric model of the Universe- _______________________________________
___________________________________________________________________________
What were the four main reasons that people held on to this idea for so long?
______________ 2. _______________ 3. ________________ 4. ______________
Define Heretic-
Define Persecuted-
Diagram and label the Heliocentric model of the Universe in the space below

4. Heliocentric Model
Explain the Heliocentric model of the Universe- _______________________________________
____________________________________________________________________________
Who were the ancient astronomers/thinkers that finally contributed enough evidence for the Heliocentric model to be accepted?
_____________________, _____________________ and _______________________
Diagram and label the Heliocentric model of the Universe in the space below

5. The Planets
Draw a diagram of the Solar System and label the 8 planets in order from closest to furthest from the sun. List one interesting fact from your notes about each planet.

6. Earth Facts
Period of Rotation_______________ this causes _________ and _________
Period of Revolution________________ this is measured a 1 ________ on Earth
The distance from the Sun to Earth is measured as 1 ______________ __________
Earth has ______ moons
Earth is the only known planet to have ________________ and ______________ on it

7. Star Sequence Life/Death
Recreate your Star Life/Death Sequence from your spirals from start to finish. Make sure to have all of the stages for both Low/Medium Mass stars and High Mass stars. Also, include a description of each stage in the sequence.

8. Astronomy Facts
What is a Spectrograph used for in Astronomy?___________________________________
____________________________________________________________________________
What is the difference between absolute and apparent brightness of a star?_____________
Define Planetary Nebula- ____________________________________________________
What two conditions does the brightness of a star depend on?_______________________
and _______________________.
Define Light Year- _________________________________________________________
How old to Astronomers estimate our sun to be?__________________________________