Cell Theory

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Across
  1. 5. A particle with no charge that is found in an atom is a _____.
  2. 8. Matthias Schleiden, a Botonist, discovered that all _____are made of cells.
  3. 9. _____ is anything has has mass and takes up space.
  4. 10. A _____ is 2 or more atoms.
  5. 11. The center of an atom that holds the protons and neutrons is called the _____.
  6. 13. Theodor Schwann discovered that all ____ are made up of cells too.
  7. 15. Zacharias Jansen developed the first compund ________in the early 1600's.
  8. 18. Richard ________ proved that cells really do come from other cells.
Down
  1. 1. Cells are the _______of structure and organization in all organisms.
  2. 2. A positively charged particle in an atom is a _____.
  3. 3. ________ was discovered by Anton Von Leeuwenhook.
  4. 4. All cells come from ______ cells.
  5. 6. The building blocks of matter are called _____.
  6. 7. All organisms are made up of one or more ______.
  7. 12. There are three parts to the ______.
  8. 14. Robert Hooke discovered the cell by looking at a piece of____.
  9. 16. An _____ is a negatively charged particle in an atom.
  10. 17. Robert ______ is credited for the term "cell".