Mid. Sch. Sci. Test #12 Lessons 83-84, 86-89 Study Guide

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Across
  1. 7. a bundle of muscle fibers
  2. 8. The earth's _____ field protects us from harmful cosmic rays from the sun.
  3. 10. When Wollaston looked at a rainbow where light passed through a prism, the dark lines were created by specific wavelengths of light being _____.
  4. 11. When gases _____, their volumes have a simple numeric relationship to one another.
  5. 12. A molecule of water has two atoms of hydrogen linked to one atom of oxygen. If two liters of hydrogen is reacted with oxygen to create water, how many liters of oxygen will be used?
  6. 14. plants use these to take in carbon dioxide for photosynthesis
  7. 15. muscle fibers that contract with little force but for a long time
Down
  1. 1. When you close your eyes tight, and hear humming, this is vibrating to make the sound.
  2. 2. The asteroid belt is between Mars and _____.
  3. 3. muscle fibers that contract with a lot of force but only for a short time
  4. 4. The _____ of a gas decreases if it is cooled and the container cannot change volume.
  5. 5. _____ acid is found in all carbonated drinks.
  6. 6. Since first measured, the strength of the earth's magnetic field has _____.
  7. 9. the scientist who measured the strength of the earth's magnetic field
  8. 13. Modern scientists call Ceres a _____ planet.