Across
- 2. A state of matter at extremely high temperatures where electrons are removed (e.g. sun)
- 4. Substance from which something is made, the origin or source
- 9. Elements combined by physical processes and either homogeneous(air, stainless steel) or heterogeneous(granite, blood, lemonade).
- 11. Different kind.
- 12. The knowledge obtained by observing the natural world.
- 13. A state of matter with a definite volume and shape.
- 14. A pure substance that cannot be subdivided without losing its properties or essence.
- 16. Initial substances before a chemical change
- 18. Same kind.
- 19. A branch of science concerned with the composition, structure, and properties of matter, the processes that matter undergo,es and the energy changes associated with those processes.
- 20. A state of matter with neither adefinite volume or shape.
- 21. A change to a substance that does not transform its chemical identity (e.g. cutting, melting, boiling)
Down
- 1. A property which depends upon the amount of matter(e.g. volume and mass)
- 3. Elements combined by chemical processes (water, salt).
- 5. A property which does not depend upon th amount of matter(e.g.. boiling point, density)
- 6. A state of matter with a definite volume.
- 7. A substance that can be subdivided into two or more elements.
- 8. Reactants yield products (similar to an equation equal sign).
- 10. Secondary substances before a chemical change.
- 15. The smallest unit of an element that maintains the chemical identity of the element.
- 17. A change to a substance that transforms its chemical identity(e.g. burning, fission, baking)