Week 9 crossword

2. 25 cents, on quarter of a dollar. [7]
3. One hundredth of a dollar. [4]
7. The evening before Christmas day, 24th of December. [9,3]
8. Money that is used in a particular country. [8]
9. The act of taking goods, letters, parcels, etc. to people's houses or places of work. [8]
10. One pence or one hundredth of a pound, from the Old English “penig”. [5]
11. A unit of heat energy. [7]
12. A green plant with white berries that is hung at Christmas because it is traditional to kiss someone under it. [9]
13. The smallest unit of any chemical element, consisting of a positive nucleus surrounded by negative electrons. [4]
14. A chemical element with some of the properties of a metal and some of a non-metal, for example silicon and arsenic. [9]

1. A simple substance that cannot be reduced to smaller chemical parts. [7]
4. 5 cents, so named after the metal it is made of. [6]
5. A thick sticky liquid that produces a sweet smell when burned and comes from a tree that grows in East Africa and Asia. [12]
6. A list of the symbols of all the chemical elements arranged in rows and columns down a page. [8,5]
15. 10 cents, named after the Latin for a tenth. [4]