We Are Not Alone!!!

We have all heard that we are what you eat, but what are we eating? An informative lesson opens with a discussion of the foods pupils have recently eaten. Then, young scientists perform four experiments on seven different foods to...

All humans alive today descended from the same woman who lived just 150,000 years ago. A thought-provoking video explains this concept as part of a larger biology playlist. It lists the location where the woman lived as well as where our...

From anteaters to zebras, why are both sexes equally represented in number? Explore a quirk in evolution with a video from a thought-provoking science playlist. The narrator shows examples of species that might only need a few males,...

Top tens lists are a lot of fun, and this one is educational as well! Viewers of the video find out ten reasons we know that the earth is not flat, as the pre-Colombus world believed. Some of the reasons are obvious, some are common...

Starting with a seemingly simple question, a video covers how many stars are visible with the human eye. Then it explains how many stars are in the Andromeda galaxy next to ours. The most interesting part is when you view a single square...

Would you believe we are salting our food as it grows? Water tables rise in areas cleared for crops causing the salty water to reach the roots of those crops. The video narrator explains the negative effects on plants as well as...

Is there life beyond Earth? If so, should we make contact with that life? Carl Sagan, along with other astronomers, packed the Voyager 1 and Voyager 2 with sounds of the Earth and Earth's inhabitants, hoping to reach life beyond...

Ever find yourself looking at a clear blue sky and notice something that seems to be floating across your eye? Well, you're not alone. Watch this short video to find out exactly what causes this and other common visual phenomenon.

Find an answer to the age-old debate of whether life exists on Mars. Groups determine criteria to help look for signs of life on Mars. The activity has the class simulate testing Martian soil samples for signs of life before drawing...

Sample size and controls are features of the scientific inquiry process that are discussed in this quick-paced quip. A comparison is made between randomized clinical trials and epidemiological studies. Terms such as placebo, cohort,...