Let me Google that for you.

1. The ancient Romans didn’t know me, but the Mayans did. What numeral am I?

One way to find the answer:

Go to Google and search [Mayan numerals] to find that the inclusion of zero in the Mayan numerical system is considered revolutionary. Then search [Roman numerals zero] to learn that the Romans did not even have a symbol for ____.

2. If you compare the half-lives of cesium-137 and uranium-238, which one outlives the other?

One way to find the answer:

Go to Google and search [half-life cesium-137] to find that it’s 30 years. Search [half-life uranium-238] to learn that the half-life of _____________ is 4.5 billion years—which is just a bit longer.


3. What is the name of the star used on one South American country’s flag to represent its territory in the northern hemisphere?

Go to Google and search [star South America flag] to find that only Brazil, Suriname, Chile, and Venezuela have stars on their flags. Search [northern hemisphere star Brazil flag] to find that the star named ______ represents the northern state of Pará (which extends north of the equator, as illustrated on the flag itself).