Across
- 2. any solid mineral element that conduct heat or electricity.
- 6. an inorganic solid material that is usually transparent or translucent.
- 8. Waste material that is unwanted or unusable.
Down
- 1. A plant in the wrong place.
- 3. An untidy accumulation of objects.
- 4. Paper is a thin, flat material used for writing, drawing... made from tree fibers.
- 5. a synthetic material that can be molded when soft and formed into a solid shape.
- 7. contains a miniature plant.