September 19, 1997 • 26m
Forensic scientists try to find out the who, what, when, where, and why of events in the past – crimes. Most forensic scientists w...Read more
September 26, 1997 • 26m
Space is hard to explore, because it’s really, really big. Most things in space are so far away that people we build special equip...Read more
October 17, 1997 • 26m
The color of your eyes, the shape of your nose, and the straightness (or curliness) of your hair depend on your genes. Not jeans t...Read more
October 24, 1997 • 26m
Towers, teepees, castles, and condominiums – some kind of planning goes into all buildings, no matter how big or small. Architects...Read more
October 31, 1997 • 26m
Before food gets into your kitchen, before it even gets to the store, it’s on a farm. Almost everything we eat is grown on a farm,...Read more
November 14, 1997 • 26m
My, how you’ve grown! The popular exclamation from your Auntie may be no great revelation, but growing bigger is a part of life. I...Read more
November 21, 1997 • 26m
Do-it-yourself science involves a question, observations, a hypothesis, and experimentation. You have probably come up with questi...Read more
November 28, 1997 • 26m
Atoms are reeeeally small. They are so small that you can’t see them with just your eye. It takes as many as 10 million of them si...Read more
December 5, 1997 • 26m
Ocean exploration is a tricky, risky business since humans can’t naturally survive under the ocean. Ocean explorers are constantly...Read more
February 21, 1998 • 26m
What do you get when you have a big hole in the ground and some water? Lakes and ponds. All lakes and ponds have one thing in comm...Read more
February 28, 1998 • 26m
How do noses work? Objects give off tiny amounts of tiny molecules into the air. When just a few of these molecules get up your no...Read more
April 25, 1998 • 26m
Caves come in all different shapes and sizes depending on how they were formed. Spelunkers (people who explore caves) have plenty ...Read more
May 2, 1998 • 26m
Fluids are cool; they ooze and swoosh. Whatever container you put a fluid in, that fluid will take the same shape. Milk poured int...Read more
May 9, 1998 • 26m
Dirt, sand, and rock from the Earth’s surface gets blown, sliced, torn, swallowed and distributed all over the world. What was yes...Read more
May 16, 1998 • 26m
Outer space is full of stuff. We’re not just talking about planets and moons. There are some bits and pieces, too small to be noti...Read more
May 23, 1998 • 26m
Storms are big, loud, and often accompanied by rain, snow, sleet, or hail. Where do these wild, dangerous, and necessary tornadoes...Read more
May 30, 1998 • 26m
Did you know that the Concorde moves 300,000 times faster than a land snail? Or that a giant redwood can be as tall as a 35-story ...Read more
June 6, 1998 • 26m
Every time you look at something, hear something, touch something, smell something, or taste something, your brain collects a litt...Read more
June 13, 1998 • 26m
Music is the art and science of expressing ideas and feelings through sound. A sad song can say more about how someone feels than ...Read more
June 20, 1998 • 26m
Things can appear to be moving, when they really aren’t. Sometimes an object might seem to be at rest, even when it is in motion. ...Read more