Certain types of plastics can leach estrogen mimicking chemicals into beverage bottles and food containers. Scientists are concerned that even at low levels, these environmental estrogens may work together with the body’s own estrogen to increase the risk of breast cancer.

This show, narrated by and featuring 12 year old Sophie Lang, includes 5 stories featuring a variety of engineers. This seven minute, widescreen program with surround sound was designed to play continuously in a special theater as part of a traveling science museum exhibit about engineering called “Tech City”

Middle school students use a giant protractor in the field, learning how trigonometry helps surveyors determine the height of a building that is far away. The students help each other to use a tape measure and a trig table that they call “that tangent thing”, to make their calculations.