Across
- 4. A scientific representation that helps us understand what is happening or how something works.
- 6. A vertical column of elements on the periodic table.
- 8. Usually electrical insulators poor conductors.
- 9. Regular arrangement of molecules. Diamonds emeralds etc.
- 10. The starting chemicals in a reaction.
- 13. The chemicals that we end up in a reaction.
- 14. The smallest whole part of matter.
- 16. An element or a compound
- 18. A group of atoms chemcically joiined together
- 19. A sign or abbreviation to represent an element
- 20. Another word for what everything is made of.
Down
- 1. shiny materials which are good conductors of heat and electricity
- 2. Contains only one type of atom and is listed on the periodic table.
- 3. What distinguishes one substance from another
- 5. A horizontal row of the periodic table.
- 7. A chmical something combines substances together
- 11. This means joined together.
- 12. Form of matter-solid,liquid,gas.
- 15. Table where we find all the lements listed.
- 17. A recipe for a particular chemical compound