| A | B |
|---|
| Most of steel is | iron |
| Airplanes are covered in | titanium |
| Electrical wiring | copper |
| Naturally magnetic (3) | iron, cobalt and nickel |
| Bananas are a good source of | potassium |
| metal that is liquid at room temp. | mercury |
| nonmetal that is liquid at room temp. | bromine |
| mineral found in bones and teeth | calcium |
| used to coat astronaut's visor | gold |
| Steel cans are coated with | tin |
| Steel is mostly made of | iron |
| gives rotten eggs their smell! | sulfur |
| added to rubber | sulfur |
| toothpaste additive | fluorine |
| nonstick cooking pans | fluorine |
| most of earth's atmosphere | nitrogen |
| smoke detectors | Americium |
| added to salt for healthy thyroid gland | iodine |
| Yellowish poisonous gas | chlorine |
| added to steel and glass to make them hard | boron |
| reacts violently with water | sodium |
| used in making airplanes | magnesium and aluminum |
| used in cancer diagnosis | technetium-99 |
| glow in the dark paints | promethium |
| smoke detectors | americium |
| name the 3 allotropes of C | graphite, diamonds and fullerene |
| two most plentiful gases in air | nitrogen and oxygen |
| light bulb filament | tungsten |
| 28% of earth's crust | silicon |
| argon | inert gas in light bulbs |
| swimming pool compound | calcium hypochlorite |
