Across
- 2. The chemical symbol Mg represents which chemical?
- 7. Charles Darwin developed this theory.
- 9. Atoms are composed of protons, electrons and ______________.
- 10. A type of molecule that regulates the cell cycle.
- 11. Second planet closest to the Sun.
- 12. A process in the water cycle. It also is a type of reaction where a non-soluble solid product can form after combining two aqueous solutions.
Down
- 1. Biotic and abiotic factors are components of an _________________.
- 3. pH measures the _____________ of a solution.
- 4. A two-phase type of cellular division in which the chromosome number of a cell is halved to the haploid number. The bases of gamete formation.
- 5. Usable energy derived from replenishable sources such as the Sun and wind is referred to as _______________ energy.
- 6. The process by which green plants and certain other organisms transform light energy into chemical energy.
- 8. When ice is taken from the freezer and kept at room temperature, the solid ice changes to its liquid state - water. This is an example of a ____________ change.