Science 8 Crossword

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Across
  1. 1. when we add the number of protons and neutrons in an atom we get the atomic ______
  2. 4. tiny dots all around an atom that make proteins
  3. 6. the basic unit of matter
  4. 7. an if then statement
  5. 9. What is created in a chemical reaction
  6. 13. where photosynthesis occurs
  7. 14. the hemisphere that we are in
  8. 16. The attraction between Earth and this causes tides
  9. 17. While Earth is revolving around the sun it is also ________.
  10. 20. where electrons are in an atom
  11. 21. negatively charged subatomic particles
Down
  1. 1. when atoms are mixed but not bonded to each other such as salt water
  2. 2. this type of cell is square/ a box and green
  3. 3. when atoms combine with each other they form a _____
  4. 5. the powerhouse of the cell
  5. 6. what the Earth rotates around
  6. 8. this part of the Earth always gets the same amount of sunlight
  7. 10. Earth revolves around the sun at a _______.
  8. 11. a model
  9. 12. atoms that are chemically bonded are considered these
  10. 15. What reacts in a chemical reaction
  11. 18. the center of an atom where protons and neutrons are
  12. 19. a positively charged particle in an atom
  13. 22. the acronym that we used to describe a structure only plant cells have
  14. 23. the basic unit of life