Physical and Chemical Properties of Matter. Mr. Causey discusses physical properties and changes as well as chemical properties and changes. Physical changes result in NO NEW substances and chemical changes result in NEW substances (products) because of a chemical reaction. Tearing a piece of paper is a physical change but burning a piece of paper is a chemical change. Continue reading
««« written by Ana Pereira Neves.
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.
Bradley talks about one of the most reactive elements in the world that we also happen to need in our bodies. Continue reading
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
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
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….