What Makes a Skunk Smell?
What Makes a Skunk Smell? The unpleasant odor of a skunk comes from an oily liquid. The skunk uses this liquid as a defense against enemies. The skunk oil, known as...
Read More
Why Is the Frame on a Girl’s Bike Curved?
Why Is the Frame on a Girl’s Bike Curved? The top bar on the frame of a girl’s bicycle is curved downward to give clearance for women’s skirts. Before ladies’ bicycles...
Read More
Why Is There Sand in Our Eyes When We Wake Up?
Why Is There Sand in Our Eyes When We Wake Up? The “sand” that we sometimes find in the corners of our eyes when we wake up in the morning comes from a...
Read More
How Salty Is the Ocean?
How Salty Is the Ocean? In general, the salinity (saltiness) of the ocean is 3.5 percent by volume. A gallon of seawater contains about a quarter of a pound of salt....
Read More
What Are the Hormones That Affect Your Appetite?
What Are the Hormones That Affect Your Appetite? Modern research is showing that several varying hormones transmit or dampen hunger signals, which directly and...
Read More
How Are the Pictures Formed on Camera Film?
How Are the Pictures Formed on Camera Film? Photographic film is a thin sheet of plastic, coated with special chemicals. Where light rays hit the film, chemical changes...
Read More
How Does a Magnetic Compass Tell Direction?
How Does a Magnetic Compass Tell Direction? A magnetic compass is the most well known type of compass, which has become so popular that the term “compass” almost always...
Read More
Why the Years in the 2000s Are Called the 21st Century?
Why the Years in the 2000s Are Called the 21st Century? It appears that we are a century ahead of our calendar because we refer to the years in the 2000s as the 21st...
Read More
Why Do Ants Follow Ant Trails?
Why Do Ants Follow Ant Trails? Most ordinary ants follow ant trails to and from food sources. Ants employ an odor language when gathering food. When an ant finds food,...
Read More
How Can You Tell the Difference Between a Female and a Male Slug?
How Can You Tell the Difference Between a Female and a Male Slug? You can’t tell the difference between a male and female slug because slugs are part male and part...
Read More