Compound and Mixture Crossword

7. A combination of chemical symbols and numbers used to represent a compound (e.g., H2O).
8. A one- or two-letter abbreviation used to represent an element on the periodic table (e.g., Na, O, or Au).
10. A type of element that is usually dull, brittle, and a poor conductor of heat and electricity.
11. Anything that has mass and takes up space.
12. Two or more atoms that are bonded together; they can be the same element or different elements.
14. A physical property calculated by dividing an object's mass by its volume; it determines if things sink or float.

1. A type of change where a substance changes its appearance or state (like melting ice), but is still the same substance.
2. The smallest building block of matter that still has the properties of that element.
3. A pure substance made of two or more different elements that are chemically bonded together.
4. The small number written slightly below and to the right of a chemical symbol that shows how many atoms are present.
5. The amount of physical space an object takes up.
6. A pure substance made of only one kind of atom that cannot be broken down.
9. A type of element that is shiny, malleable, and conducts heat well.
12. A combination of two or more substances that are physically combined, but NOT chemically bonded.
13. A measure of the amount of matter in an object, usually measured in grams.