Crossword

2. The process of making something look bigger.
3. To remove a number from another number.
7. A unit of weight equal to approximately 28 grams.
8. A measurement of temperature on a standard in which 0° is the temperature at which water freezes.
10. Something that must exist or happen before something else can exist or happen.
11. A unit used to measure force, equal to the force that moves a mass of one kilogram one meter in one second.
12. A glass or plastic container used in chemistry.
13. To move up and down frequently.

1. A small, round spot that is used in numbers to separate whole numbers from parts of numbers.
4. A device worn over the mouth and nose to prevent harmful substances from being breathed in.
5. A number or sign that shows how many times another number is to be multiplied by itself.
6. A device used for weighing things.
9. A tool with a wide flat blade, used for mixing, spreading or lifting substances.
12. An area or subfield of a larger field.
14. An arrangement of facts and numbers in rows, columns or blocks.