Seawater makes ancient concrete stronger, so it lasts while modern structures crumble into the sea. Researchers have now discovered that elements in the volcanic substance react with sea water, strengthening the material 2,000 years after they were first erected, Ancient Roman harbours made from concrete are still standing across Europe. Continue reading
Tag Archives: chemical properties
The Universe in a Cup of Coffee
Reactions is joining PBS Digital Studios! Woohoo! To celebrate, we’re doing a deep dive on the surprisingly complex and beautiful chemistry behind our favorite morning beverage: coffee. Continue reading
Science Within the Curriculum
Written by Joyce Posada, a 2015 STAO Galbraith winner from the University of Toronto.
This is a two-page survival guide containing the essential knowledge needed to teach all of the grade 9 academic strand, Atoms, Elements, and Compounds.
Click here to download the complete article….
Top Secret: Journalist Dossier on Household Chemicals
By Christine Russell
Curriculum Connection: Grade 11 Chemistry (SCH3U) — Solutions and Solubility
In this activity, students investigate the active ingredients in hazardous household products, e.g., cleaners, disinfectants and possible safer alternatives. Continue reading
Creating an Element Superhero or Villain
««« written by Ana Pereira Neves.
Curriculum Connection:
This activity is intended for Grade 9 D/P level courses.
Introduction:In this activity, you will create a poster of a Superhero or Villain based on an element in the periodic table with an atomic number of 20 or less.
