Across
- 3. blend of two or more substances
- 4. based on observation and evidence
- 6. consistent or recurring arrangement
- 8. scientific procedure to test a hypothesis
- 10. arrangement or structure of parts
- 11. in a fitting or proper manner
- 13. traits that define or describe a material
- 14. building blocks of all matter
- 16. crossing boundaries between academic fields
- 17. cannot be broken down chemically
- 18. look into closely or research
Down
- 1. involving machines, tools, or innovation
- 2. subatomic particles with a positive charge
- 3. physical substance in general
- 5. study involving reactions and substances
- 7. natural world or ecological setting
- 9. particles with no electrical charge
- 12. physical force applied to something
- 13. fundamental rules or beliefs
- 15. smallest units of compounds