Thermal paper such as that used for point of sale receipts typically functions by darkening when exposed to heat. The pigment system used in this paper also darkens when exposed to solvents of intermediate polarity and acids. This enables thermal paper to be used as an inexpensive sort of indicator paper for a variety of demonstrations.
The differing electrostatic and solubility properties of starch and polystyrene foam packing peanuts are used in various demonstrations to describe aspects of microplastics and their interactions with the environment. Their differing responses to exposure to liquid nitrogen and iodine solutions are also described.
Beyond Benign develops and supports teachers to advance sustainable science education. Learn how these teachers are practicing Green Chemistry in the classroom, mentoring colleagues, and growing professional learning communities.
Responsible Chemistry Citizenship - The April 2020 issue of the Journal of Chemical Education is now available online to subscribers. Topics featured in this issue include: environmental chemistry; green chemistry; revisiting classic demonstrations & activities; teaching stoichiometry; foundations of teaching and learning; organic chemistry; inorganic chemistry; understanding chromatography; analytical methods; aids for spatial learning; computer-based learning; low-cost teaching tools; from the archives: resources for teaching online and articles for celebrating Earth Week 2020.
A greener procedure that you might consider to replace the traditional "formula of a hydrate lab" that has typically used copper II sulfate.
Beyond Benign, a national nonprofit, established in 2007 to equip educators, scientists, and citizens with the tools to teach and practice green chemistry to achieve a sustainable society, just announced a strategic partnership with Flinn Scientific.
You can perform an orange to black chemistry demonstration using materials commonly found in stores. The reaction appears to be similar to the Old Nassau reaction, but uses greener reagents. This is a great demonstration to do around Halloween time.
The June 2015 issue of the Journal of Chemical Education is now available online to subscribers at http://pubs.acs.org/toc/jceda8/92/6. This issue includes articles on curriculum; assessment; inorganic chemistry; investigating galvanic cells & exploring LEDs; atomic structure; nanochemistry laboratories; physical chemistry in the lab; synthesis.
