Our Solar System

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					                            South Carolina Mastering the Pact 8-4.1, 8-4.2, 8-4.3, 8-4.9        11-12


Name__________________________________________Date______________Period_______

1. A scientist is attempting to classify a large object in space. The scientist had determined that
the object is in orbit around Jupiter. The object is most likely a
________________________________.

       A planet        B star          C moon                   D meteor

2. Which statement best compares planets and comets?

       A Planets and comets travel in circles around the sun.
       B Comets have large orbits that periodically pass near planets
       C Planets travel in ellipses, while comets travel in circles.
       D Planets and comets are both made of dense rocky material.

3. The objects people refer to as shooting stars are often meteors burning up in Earth’s
atmosphere. If a meteor does not burn up but strikes Earth, it is call_________________.

       A an asteroid            B a meteorite          C a meteriod             D a satellite

4. The planets in order are ____________________, _______________, ________________.

       A Mercury, Earth, Venus                  C Mercury, Venus, Earth
       B Earth, Mercury, Venus                  D Earth, Venus, Mercury

5. Rocky bodies that orbit between the inner and outer planets are ____________________.

       A meteors       B comets        C moons         D asteroids


6. A _______________ is a looping eruption of gas that connects sunspots.

       A sunspot       B corona        C prominence             D solar flare

7. Which layer of the Sun admits the sunlight we see on Earth?

       A photosphere            B chromosphere         C litoshpere      D atmosphere

8. The outer region of the Sun’s ________________ stretches far into space.

       A mantle        B photosphere            C corona        D core

9. Which is the hottest layer of the Sun?

       A corona        B prominence             C photosphere            D lithosphere
                                South Carolina Mastering the Pact 8-4.1, 8-4.2, 8-4.3, 8-4.9       11-12


10. Which describes one way that solar wind affects Earth?

        A It changes Earth’s magnetic field
        B It changes Earth’s orbit around the Sun
        C It increases the temperature of Earth’s atmosphere
        D It increases the temperature of Earth’s surface

11. Solar flares can produce geomagnetic storms that reach Earth’s atmosphere. How can these
storms affect satellites orbiting the Earth?

        A They can increase the transmission range of some satellites
        B They can cause disruptions of satellite signals to Earth
        C They can cause some satellites to overheat and burn up in space
        D They can increase the speed of some satellites and cause them to move deeper into
          space.

12. Some solar flares send out high-energy particles. Why are these particles not usually harmful to
humans on Earth?

        A the Moon protects Earth                  C the atmosphere and magnetic field protect Earth
        B the oceans protect Earth                 D the auroras protect Earth

13. Large geomagnetic storms can cause surges of electric current here on Earth. What is the most likely
result of a large surge in electric current?

        A power outages                            C cheaper electric power
        B better TV reception                      D Local Group galaxy

14. The Sun’s photosphere gives off radiation that reaches Earth as ____________________.

        A solar storms                             C magnetic storms
        B heat and light                           D the auroras

15. Galaxies are different from solar systems because they are made up of ________________.

        A billions of stars                        C gas giant planets
        B billions of planets                      D mostly gas clouds

16. A(n) _____________ year is the distance light travels on one year.

        A lunar                                    C new
        B light                                    D astronomical


17. In which galaxy so we live?

        A Great Spiral galaxy                      C Milky Way galaxy
        B Andromeda galaxy                         D Local Group galaxy

				
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