STEM crossword

123456789101112131415161718
Across
  1. 1. Opposite of multiplication
  2. 3. A living organism that moves and grows
  3. 7. Tiny particles that cause disease in people, animals, and plants
  4. 11. A tool to see distant things in space
  5. 12. Change of state from solid to liquid
  6. 13. A state of matter where particles spread out to fill a space
  7. 14. Natural satellite of the Earth
  8. 15. Common name for 90 degrees
  9. 17. Force that pulls things down to Earth
  10. 18. A combination of different things
Down
  1. 2. Largest organ in the body
  2. 4. Layer of air surrounding the Earth
  3. 5. A branch of science that deals with living organisms and their processes
  4. 6. How energy moves from one living thing to another
  5. 8. A person who studies science
  6. 9. The name for the top number in a fraction
  7. 10. Flow of electrons
  8. 12. Amount of matter in an object
  9. 16. The smallest particle