dry ice

"Sublimation Bubbles" how some solid materials can sublimate directly into their liquid form. Participants use water to observe dry ice sublimating into gaseous carbon dioxide, and then capture the gas in soapy bubbles.

The Explore Science: Let's Do Chemistry kit is designed to stimulate interest, sense of relevance, and feelings of self-efficacy about chemistry among public audiences.

"Snowflakes" is a public presentation that introduces nanoscale science through the subject of snowflakes. Visitors learn that the complex structure of snowflakes results from the nanoscale arrangement of water molecules in an ice crystal, and that snowflakes are examples of...