Across
- 3. Process by which plants convert sunlight into energy
- 5. Test or investigation conducted to gather scientific evidence
- 7. Object that attracts certain metals, such as iron
- 10. Anything that occupies space and has mass
- 12. State of the atmosphere at a particular time and place
- 14. Energy Energy from the sun that can be converted into other forms of energy
- 16. Opening in the Earth's crust that allows molten lava, ash, and gases to escape
- 17. System Sun, planets, and other celestial bodies that orbit the sun
- 19. Ability to do work or cause change
- 20. Substance made up of two or more elements
Down
- 1. Community of living organisms and their environment
- 2. Vibrations that travel through air, water, or other mediums
- 4. Instrument used to see objects that are too small to be seen with the naked eye
- 6. Molecule that contains genetic information
- 8. Study of genes, heredity, and variation in living organisms
- 9. Device used to observe distant objects in space
- 11. Force that pulls objects towards each other
- 13. Push or pull that causes an object to move or change direction
- 15. Preserved remains or traces of ancient plants and animals
- 18. Basic unit of matter