Supersaturation Tower – Flinn Scientific Canada

In this demo, the teacher creates a tower of sodium acetate trihydrate from a supersaturated solution. Your students’ curiosity will grow as you demonstrate the concepts of supersaturation and crystallization!

The sodium acetate solution is a supersaturated solution. The seed crystal is the start of a chain reaction, which causes all of the sodium acetate trihydrate molecules to crystallize. Crystallizing means that a liquid is becoming a solid, or “freezing.” The solution is supersaturated and supercooled—this means that it contains more dissolved sodium acetate than a saturated solution and has been cooled to below its freezing point without crystallization occurring.

Click here to download the complete demo 

Scientists design shape-shifting workout gear powered by bacteria – Home | As It Happens | CBC Radio

Wednesday May 24, 2017

Researchers at MIT have created bacteria-based workout gear covered in ventilation flaps that automatically open up when you sweat.And that’s just the beginning of what they say “living clothing” will eventually be able to do for us. The team of 14 MIT researchers, funded by New Balance Athletics, have created prototypes of men’s and women’s workout gear, as well as sneakers.”It helps to evaporate your sweat more efficiently,” Wen Wang, chemical engineer and lead author of the paper published in the journal Science Advances, told As It Happens host Carol Off.

To find out more check out the source below:

Source: Scientists design shape-shifting workout gear powered by bacteria – Home | As It Happens | CBC Radio

It’s STAO Award Nomination Time!!!!!

Are you working with an outstanding colleague, someone who has inspired you in your career?

Have you wished that that person could be recognized for his/her contributions to the teaching of science?

STAO can help you with that recognition.


Consider the following Award categories: 

IRWIN TALESNICK AWARD FOR EXCELLENCE IN THE TEACHING OF SCIENCE: to recognize excellence in the teaching of science in Ontario.

JACK BELL AWARD FOR LEADERSHIP IN SCIENCE EDUCATION:  for STAO/APSO members who have demonstrated outstanding and sustained leadership in science education in Ontario over a period of many years.

STAO/APSO EMERITUS AWARD: for a STAO/APSO member upon retirement.

STAO/APSO MERIT AWARD: to recognize a member’s leadership and excellence in the teaching of science.

It’s not too late to nominate a colleague, a mentor, a respected educator for one of these STAO Awards.  Note that the nominator and nominee must be STAO members.


The link to the nomination forms can be found at


 Please forward this notification to all colleagues and ask them to forward to their distribution lists.  We want to recognize all deserving Ontario science educators.





Interview with Dr. Ulyana Horodyskyj – Glaciologist

Dr. Horodyskyj is the CEO of Science in the Wild (Boulder, Colorado). This is a citizen science adventure company. Prior to this, she held a post-doc position at the National Snow and Ice Data Center based in Boulder, Colorado. Currently, she is taking people on expeditions around the world and educating them in field science methods, as well as teaching at Colorado College as visiting faculty. Continue reading