Science Education Resource Center at Carleton College
Serc: Building Big Educator's Guide Mini Activity Human Arch, Forces
In this physics/engineering activity students physically make an arch by pushing on each other with arms outstretched over head. As long as the pair of students balance each other's force their arch will stand, although it will be weak....
Other
Scientific Visualization: Vector Calculation
A Java applet on vector addition. Users drag two or more vectors to be added together. Clicking a button shows the resultant of the vectors.
![American Chemical Society: Best of Wonder Science: Ice of a Different Color [Pdf] Activity](https://d15y2dacu3jp90.cloudfront.net/images/attachment_defaults/resource/large/FPO-knovation.png "American Chemical Society: Best of Wonder Science: Ice of a Different Color [Pdf] Activity")
American Chemical Society
American Chemical Society: Best of Wonder Science: Ice of a Different Color [Pdf]
An experiment to test what happens to water when salt or sugar is added and it is then frozen into ice cubes. Students also explore the ice's physical properties by rubbing cubes on sandpaper and dropping a heavy object on each type.