What's in YOUR water? We all have the right to know if the streams running through our backyards and neighborhood parks are safe. But there is an alarming lack of up-to-date information about water quality across the country. Stream Selfie connects you with thousands of other citizen scientists to paint a picture of streams across …
Build your own Barometer! In this activity, you'll create a simple barometer to observe changes in air pressure and predict weather patterns. This experiment demonstrates how air pressure impacts water levels as the weather changes. By setting up a water-filled cup with an inverted plastic bottle, you'll mark the initial water level and watch how …
Build a Telescope! Design your own lens and parabolic mirror from simple materials and watch light refract or reflect onto a target, just as happens in actual telescopes. The activity can scale with the group or audience size: A big bowl or reflective surface will focus light well enough that an entire auditorium can see …
Electrical engineering encouragement! Learn how electricity moves through a circuit while designing an LED greeting card.
