Use this to study for your test guys!!!

1. Study Guide Game Chapter 4

2. The Milky Way Galaxy is an example of: Spiral Galaxy Elliptical Galaxy Spherical Galaxy Irregular Galaxy The Answer is : A. Spiral Galaxy

3. Astronomers use parallax to measure a star’s: Brightness seen from Earth Distance from Earth Color as observed from Earth Color observed from Earth The Answer is: B. Distance from Earth Remember the demonstrations we did in class. This was to illustrate how astronomers use different perspectives to measure how far a star is away from Earth.

4. True or False: Convection is the process of converting hydrogen into helium. True False The Answer is: B. False FUSION, people! FUSION! Convection is the process which the energy is heated and then cooled. As it is heated it becomes less dense and escapes to the outer atmosphere of the sun.

5. Which of the following objects is part of a low-mass star’s life cycle? White dwarf Super Giant Star Black Hole Neutron Star The Answer is: A. White Dwarf High-mass stars have two different outcomes- neutron star and black hole. Super giant= high mass. Giant star= low mass

6. True or False: The more sunspots there are, the warmer Earth will be. True False The Answer is: B. False The more sunspots there are the cooler Earth is. Sunspots are dim areas on the sun which decreases the amount of energy being sent to Earth.

7. What factor determines the length of a star’s life cycle? Density Size Brightness Mass The Answer is: D. Mass Remember we classify stars by their mass. Low-mass stars and high-mass stars!

8. True or False: The Sun’s chromosphere is the layer of the sun which we only see during a total solar eclipse. True False The Answer is: B. False Remember, the layer of the sun we can not see is the corona. The density of this layer is too light for us to see.

9. What do scientists use to note the existence of a black holes? The Electromagnetic Spectrum The Doppler Effect X-Ray Parallax The Answer is: C. X-Ray Remember: As the black hole’s gravity takes in all the surrounding matter, it heats up and emits x-rays.

10. Sunspots appear on the surface of the sun in a regular pattern of: 1 year 11 years 11 months 1 month The Answer is: B. 11 years Remember the homework. You graphed the sunspots in 1 year increments but it was every 11 years that the number of sunspots increased!

11. Which of the following is NOT a way energy moves through the layers of the sun? Convection Fusion Friction Radiation The Answer is: C. Friction I never even mentioned friction in this entire lesson. DO NOT PICK friction for ANY answers on the test!

12. Draw the life cycle of a low-mass star using the following key words. White dwarf Main Sequence Giant Star Nebula Bonus point for adding Planetary Nebula. You will need to be able to identify the different phases of BOTH high-mass and low-mass stars. Study your Venn Diagram!

13. Study tips: Use your pre-assessment test, homework and exit slips The power points will be essential but know the concepts! When asked to explain or describe: Full credit= more than three sentences or bullet points which directly answer the question! Please email me if you have any questions about the material or test. Miss.e.hudak@gmail.com