| Front | noun a hard, unreactive, colourless compound which occurs as the mineral quartz and as a principal constituent of sandstone and other rocks. |
|---|---|
| Back | silica |
Learn with these flashcards. Click next, previous, or up to navigate to more flashcards for this subject.
Next card: Silicon noun chemical element atomic number non-metal semiconducting
Previous card: Adjective prompted feelings tenderness sadness nostalgia sentimental
Up to card list: Most common TOEFL words