Across
- 4. The smallest unit of an element
- 5. The unit of measurement for electric current
- 6. This element is essential for life and makes up water
- 9. A device that measures temperature
- 11. The basic unit of life
- 12. This is the largest planet in our solar system
Down
- 1. The process by which plants make their own food using sunlight
- 2. The force that attracts objects towards the Earth's center
- 3. A type of bond formed when electrons are shared between atoms
- 6. A colorless, odorless gas that humans breathe in to survive
- 7. A common metal with the symbol Fe
- 8. A system of organs that help us breathe
- 10. The organ responsible for pumping blood throughout the body
- 13. The scientific study of matter and energy and how they interact