Across
- 4. The process where liquid water turns into a gas or vapor.
- 6. A state of matter with no fixed shape that floats in the air.
- 7. The star at the center of our solar system.
- 10. A form of energy that flows through wires to power machines.
- 12. A tool with lenses used to look at very small things.
- 13. The smallest and most basic unit of a chemical element.
- 14. The basic building block of all living things.
Down
- 1. A state of matter that is hard and keeps its shape.
- 2. The invisible force that pulls objects down to the ground.
- 3. Liquid water that falls from clouds in the sky.
- 5. The third planet from the Sun that we live on.
- 8. A tiny thing that can enter a body and cause diseases.
- 9. The scientific study of living things, like plants and animals.
- 11. The green part of a plant that makes food from sunlight.
- 12. Anything that has mass and takes up space.