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Math Quiz

Are you ready to have your math skills put through their paces? This entertaining and completely free quiz will put your arithmetic prowess to the test! The questions start off easy but get increasingly more challenging toward the end. Curious to see how well you score? Let's find out.

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Fact Lab

For approximately 200 years, microscope technology remained relatively unchanged. In the 1850s, however, Carl Zeiss, a German engineer, developed improvements for the device! Joseph Jackson Lister also helped eliminate the unequal bending of light hitting the microscope lens, leading to further improvements!

Despite being further away from the sun, Venus is hotter than Mercury. The reason for this is the high concentration of carbon dioxide in Venus’ atmosphere, which traps more heat, producing a greenhouse effect. Things related to Venus are called “Venusian.”

Even if you don’t like cats, you should be thankful for their existence. Without our feline friends, the world would be overrun by rats and other disease-bearing rodents in no time. In just one year, a single pair of rats can produce more than 2,000 offspring. Luckily, cats keep these numbers in check.

Fact Lab