| Answer | Crossword Clue |
|---|---|
| specks | A small particle of a substance |
| globules | A small round particle of a substance; a drop |
| decaying | (of a radioactive substance, particle, etc.) Undergo change to a different form by emitting radiation |
| metastable | (of a substance or particle) Theoretically unstable but so long-lived as to be stable for practical purposes |
| molecule | the smallest particle of a substance that retains all the properties of the substance and is composed of one or more atoms |
| inclusions | A body or particle recognizably distinct from the substance in which it is embedded |
