Across
- 1. anything that occupies space and has mass.
- 5. negative charge of an atom
- 8. It is composed of tiny particles and basic unit of matter.
- 9. The contamination of air, water, or soil by substances that are harmful to living organisms.
- 10. the study of living organisms.
- 11. the process by which plants make their own food.
- 14. The study of the composition, properties, and reactions of matter.
- 15. basic unit of life
Down
- 2. application of scientific knowledge.
- 3. The tabular arrangement of the elements according to their atomic numbers
- 4. the scientific study of plants.
- 6. the division of a cell in reproduction or growth.
- 7. a colorless, transparent, odorless, tasteless liquid
- 12. system of acquiring knowledge
- 13. third planet from the sun