Test your basic knowledge |

Subject : science
Instructions:
  • Answer 37 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Pencil lead is mostly ...






2. Given the name of the coin - it's surprising that only 25% of it is this element






3. A radioactive gas that sometimes seeps through basement floors and accumulates in poorly ventilated houses






4. When dissolved in alcohol - this is used to disinfect cuts






5. A liquid metal






6. An essential component of computer chips and glass. It's also what most beach sand is made of and is the most abundant element on earth






7. A flammable gas that used to be used in blimps (and was contained in the Hindenberg - which caught fire while trying to land in New Jersey over 75 years ago.)






8. Nickels - dimes - and quarters are now made of copper and nickel - but before that they were all made of ...






9. What the state capitol dome is covered in. _________






10. Before there was aluminum foil there was ______________ foil.






11. 1% of air is this gaseous element






12. 78% of air is this gas






13. Marie Curie found this element that used to be used to make watch and clock dials glow in the dark. ________________________






14. The element that is in the gas with the rotten egg smell






15. Many people believe that getting too much salt is bad for you because salt contains






16. ______________________ was the first element found to be radioactive






17. The metal the Statue of Liberty is made of...






18. When they can't afford diamonds - prospective husbands might buy their fiancees stones made of this element (and probably live to regret it later)






19. A gaseous element used in brightly colored electric signs






20. A shiny metal used on automobile bodies - especially the trim






21. Those painfully bright headlights can contain this gas.






22. Until the recent discovery of a new planet (or even planets) in our solar system - this element was named after the farthest known planet (or closest dwarf planet) from the sun...






23. Deep blue glass often contains this element






24. As far as credit cards go - this is more precious than gold or silver






25. When this element is burned in a flame - the color is a deep red - just like the gemstone it's named after






26. Some medical reports suggest that taking this element helps prevent colds






27. This element is widely used in matches and fertilizers.






28. A metal that is used in car batteries and as a solder to join pipes - and once was contained in paint and gasoline - is a health hazard for people (especially young children) who ingest it.






29. For some reason - everyone seems to know that bananas are rich in...






30. Contained in toothpastes and town drinking waters






31. Added to town drinking water (and swimming pools) to kill bacteria






32. The nonflammable gas that was used to replace hydrogen in blimps






33. Metal used as a filament in light bulbs






34. Found in Pepto-Bismol and makes it pink






35. Radioactive element contained in smoke detectors






36. A favorite poison of mystery writers.






37. People who don't get enough of this metal can suffer from anemia.