Across
- 1. Type of cell that has internal membranes
- 3. Exterior part of cells that is shared by all cell types
- 4. Observation we make that gives us an exact number
- 5. In science, we measure volume in
- 9. When we expand on our observation with an assumption about what happened
- 10. In science, we measure length in
- 12. A descriptive observation
- 14. An educated guess
- 15. The simplest unit of life
- 16. Organelle found in all types of cells
- 17. The group that does not receive the treatment
- 19. _______________ generation theory claimed that living matter came from nonliving matter
Down
- 2. In science, we measure mass/weight in
- 6. The variable that we change
- 7. Organism whose cells have no internal membranes
- 8. A hypothesis is usually written as an "if, _______" statement
- 11. A hypothesis must be
- 13. The variable that you measure
- 15. Jelly-like substance found in all cell types
- 18. Genetic material found in call cell types