The Solar System
  1. The Solar System is our __________________ that travels around it.

  2. Our Solar System is __________________________ in shape.

  3. Nine known planets and their moons, along with _________________, _________________, and other space objects _____________ the sun.

    The Sun

  4. The Sun spins slowly on its _____________________ as it _______________ around the galaxy.

  5. The Sun also produces big explosions of energy called __________.

    The Planets

  6. A planet is a large space object which _________ around a star.

  7. There are two groups of planets named ___________________ planets and _____________ planets.

    Mercury

  8. Mercury is about the same size as our ___________________.

  9. Mercury can only be seen from Earth just before _______________ or just after________________, but not in the middle of the night.

    Venus

  10. Venus is called the ________, because it looks so bright to us from Earth.

  11. This planet is unusual because it ________ in a direction opposite that of all of the other planets.

    Earth

  12. Seventy percent of the Earth's surface is covered by ______________.

  13. It has an atmosphere made up of many different __________________, but mainly it is nitrogen and oxygen.

    Mars

  14. The ________________________ is what gives Mars its red color.

  15. Mars also has some of the tallest __________ and some of the deepest ______________ in our solar system.

    Jupiter

  16. Jupiter is so large that all of the ________________ in the solar system could fit inside of it.

    Saturn

  17. Saturn is surrounded by over 1,000 rings made of _______________ and __________________.

  18. The size of the ____________ in the rings range from pebble-size to house-size.

    Uranus

  19. Uranus is large enough to hold _________ planets the size of Earth.

  20. The cold _______________ is what gives Uranus its blue-green color.

    Neptune

  21. Neptune has winds in its atmosphere which blow at over _______ kilometers per hour.

  22. Neptune has ___________ moons.

    Pluto

  23. Some astronomers think Pluto is not a real planet, but a __________.

  24. Pluto is actually smaller than one of ___________________.
Adapted from Success Link (http://www.successlink.org/great/g267.html)