Across
- 3. - a large, deep pit from where stones and other materials are taken
- 4. - grainy material such as gravel, sand or crushed stones
- 5. - the matter from which a thing is or can be made
- 6. -the result of two or more numbers when multiplied together
- 7. -concrete bricks are made with it
- 8. - any living or non-living things that is useful.
Down
- 1. - gold and silver
- 2. - repeated addition