Astronomy 7th grade

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Across
  1. 2. / IS THE INVESTIGATION AND MEASUREMENT OF THE SPECTRA PRODUCED BY MATTER
  2. 3. / THIS BRANCH OF ASTRONOMY STUDIES HUMAN TRAJECTORIAS, EXPLORATIONS AND SURVIVAL
  3. 5. / HE EXCELLED NOT ONLY IN ASTONOMY, BUT GEOGRAPHY, MATHEMATICS, POETRY AND MUSIC.
  4. 8. / THIS BRANCH STUDIES THE FORMATION OF PLANTARY SYSTEM AND THEIR SATELITES
  5. 9. / THEY DEVELOPED THE CALENDAR TO CONTROL THE PASSAGE OF TIME
  6. 11. / THIS SPECIALIZATION USE PHYSICS TO EXPLAIN THE PROPERTIES AND PHENOMENA
  7. 12. / IS A SCIENCE THAT STUDY THE UNIVERSE.
  8. 13. / THEY HAVE A HUGE PYRAMIDS AND TEMPLES BASED ON ASTRONOMICAL POSITIONS
Down
  1. 1. / HAS FOUR MOONS REVOLVING AROUND IT.
  2. 4. / IS A BRANCH OF ASTRONOMY THAT DEALS WITH THE ORIGIN AND EVOLUTION OF THE UNIVERSE
  3. 6. / WERE THE FIRST CIVILIZATION TO DOCUMENT THE MOVEMENT OF THE SUN AND THE MOON
  4. 7. / GREEK PHYLOSOFER BEST KNOW FOR MATHEMATICS, ALSO ASTRONOMY
  5. 10. / ASTRONOMY WAS HIGHLY POPULAR DURING THE POST-ISLAM CIVILIZATION.