Astronomy and Microscopic Physics

12345678910111213141516
Across
  1. 2. Very close to Earth-size, but really unpleasant! 70times Earth's atmospheric pressure, 447C/870F, sulfuric acid rain, no oxygen, CO2 atmosphere!
  2. 3. H20. 2 hydrogen atoms and 1 oxygen atom.
  3. 5. Closest to the sun, slow rotation so very hot 427C/800F-(hot enough to melt lead) to -173C/-280F, the smallest planet
  4. 6. 90 million mi/150 million km away from the Earth, 8 light minutes. Radius 400,000 mi/ 666, 000km. Gets its energy by changing Hydrogen into Helium. A total life of 10 billion years in its current phase, 4.6 billion years are gone. The temperature will increase lots over the billions of years, we will have to find somewhere else to live if we are still around.
  5. 7. Natural objects glowing as they enter our atmospheres are called 'this.'
  6. 8. My teacher calls himself
  7. 10. Between Mars and Jupiter, perhaps millions of objects from grain of sand size up to 600 mi diameter.Rocks and metal lots of room between the asteroids unlike the scene from Star Wars.
  8. 12. Much farther out, perhaps a quarter of the way to the next star.
  9. 13. Probably a mixture of rock and frozen gases. When the orbit of the 'this' is disturbed to bring it closer to the sun, from the Oort cloud perhaps, the ___ warms up and produce a "dust" cloud which is pushed away from the direction of the sun by sunlight.
  10. 14. A few simple things that the universe is made of,basic building blocks of everything!
  11. 15. One of the Atoms' 3 parts. Massive but small, positive charge.
  12. 16. Attract protons and create a nucleus. The "nuclear glue."
Down
  1. 1. Big, outsiede of the sun most of the maternal in the solar system is in 'this.' Have many moons.
  2. 4. Sheets of Carbon atoms with no bond between the sheets to hold them together-very slippery.
  3. 5. My name
  4. 6. The planet with the spectacular rings although all giant planets have ring if you look hard enough. 62 known moons as of August 2017 (including the only moon, Titan, in the solar system with an atmosphere, nitrogen like Earth, no oxygen. Coldwater is a mineral!), methane lakes/oceans.
  5. 7. The name of our galaxy.
  6. 9. One of Atoms' 3 parts. Big and light, negative charge.
  7. 11. A sun or suns orbited by planets, comets, asteroids, and dust.