models

The "Chemistry Makes Scents" lets participants use their noses to distinguish between chemicals with very similar structures. Some molecule pairs contain all the same elements, arranged the same way but flipped in a "mirror image." While these chemicals can behave similarly...

This online presentation and discussion covered the science behind three of the 2017 Explore Science: Earth & Space toolkit activities - Rising Seas, Investigating Clouds, and Orbiting Objects. After a brief overview of each activity and associated materials, Laura Peticolas...

"Exploring the Universe: Orbiting Objects" is a hands-on activity that invites visitors to experiment with different sized and weighted balls on a stretchy fabric gravity well. The activity models gravitational attraction in space. Participants investigate how changing conditions can cause...