Across
- 5. the pigment that makes plants green
- 10. the movement of a group of people or animals from one part of the world to another
- 12. insect eating
- 13. complex molecules found in living things that are necessary for life
Down
- 1. the study of the earth
- 2. a complex chemical process by which green plants use the energy of sunlight to change water to carbon dioxide into glucose for food
- 3. a tiny package of chlorophyll within a plant cell
- 4. a type of sugar that plants need to live
- 6. setting in which certain types of plants and animals thrive
- 7. chemical that plants, animals, and people need in small amounts for nourishment
- 8. the record of what has happened to mankind
- 9. a half of a sphere
- 11. way of life