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