Across
- 3. the amount of space taken up by an object
- 4. a measure of the ongoing sequence of events taking place
- 7. an element that occurs in all organic compounds and can be found in all known forms of life.
- 9. energy energy of moving electrons or
- 11. energy generated due to magnetic fields
- 12. the ability of a substance to resist something to resist scratching
- 15. the color of a substance in powder form
- 16. the transfer of heat from one substance to another through direct contact
- 18. the way light reflects from the surface of a substance
- 19. a solid, inorganic substance of natural occurrence
- 20. elements that are mostly shiny ,silver or gray in color, malleable,ductile, and good conducters of heat and electricity
Down
- 1. the form of energy associated with the movement of atoms and molecules in a materiel
- 2. to change from one form to another
- 5. charges.
- 6. Energy locked in the nucleus of an atom.
- 8. a pure substance that cannot be broken down chemically
- 10. the amount of matter in an object
- 13. the ratio of an object's mass to its volume
- 14. the number written after an element's symbol in a chemical formula that indicates the number of a specific element
- 15. the distance an object travels per unit of time
- 17. the appearance of a substance due to the absorption and reflection of certain light rays