Everyday Science: Lead Quiz
by Staff
Although we've understood the usefulness of lead since ancient times, it's taken us until recently to fully understand the danger lead poses to our health. What else should we know about this metal?

What is the symbol for lead on the periodic table of the elements?

  • P
  • Pb
  • Pd

What function does lead carry out in the human body?

  • It helps transport oxygen.
  • It assists brain function.
  • It serves no good function in the body.

When lead enters your system, you body treats it as if it were:

  • poison
  • calcium
  • iron

Where can lead be found?

  • the Earth's crust
  • below the crust, in the Earth's upper mantle
  • Lead doesn't occur in nature; it is manufactured in labs.

Why is lead effective at absorbing radiation?

  • It's malleable.
  • It's dense.
  • It doesn't conduct electricity well.

What process removes the impurities of lead?

  • electrowinning
  • roasting
  • smelting

When was leaded gas banned in the United States?

  • 1954
  • 1978
  • 1996

Lead exposure can lead to which of the following?

  • high blood pressure
  • infertility
  • both of the above

Why is lead poisoning particularly harmful to a child?

  • It interferes with a child's brain's development.
  • A child's immune system isn't strong enough to resist the harmful effects.
  • A child can't recognize the symptoms as well as an adult, so lead poisoning is likely to go untreated longer.

Which of the following is a treatment of lead poisoning that is reserved for extreme cases?

  • prescription medications like Succimer
  • chelation therapy
  • There is no treatment for lead poisoning.