![physical and chemical changes header](/sites/default/files/styles/resource_card_image_360x300_/public/2022-11/physical%20and%20chemical%20changes%20header.jpg?itok=dmgnc95b)
Exploring Physical and Chemical Changes
Lessons
Students observe and classify physical and chemical changes of matter.
![Test tubes with colourful liquids](/sites/default/files/styles/resource_card_image_360x300_/public/2021-11/test-tube-with-colourful_liquids.jpg?itok=MEo5D0U_)
Evidence of Chemical Change
Backgrounders
Learn how to tell if a chemical reaction has taken place.
![Holiday meal with roast turkey and cookies](/sites/default/files/styles/resource_card_image_360x300_/public/2020-04/holiday-dinner-with-stuffed-turkey.jpg?itok=qH6s9w1h)
Physical and Chemical Changes in the Kitchen
STEM Explained
Many physical and chemical changes happen when food is prepared. Chemistry never tasted so good!
![Solid ice on the far cave wall and liquid water in the pool in front of it](/sites/default/files/styles/resource_card_image_360x300_/public/2019-11/Ice_cave_wall_water_in_pool.jpg?itok=t3Wz6v81)
Properties of Liquids and Solids
Lessons
Students develop and apply observing, comparing & contrasting and predicting skills as they explore the properties of common liquids and solids.
![Container of flour](/sites/default/files/styles/resource_card_image_360x300_/public/2019-12/Container_of_flour.jpg?itok=jFiB27pV)
Mystery Powders
Lessons
Students investigate the properties of a variety of everyday solids (powders) and liquids to determine the identity of an unknown solid (mystery powder).
![Amanda Deon | Senior Research Technician, Arcelormittal Dofasco Amanda Deon | Senior Research Technician, Arcelormittal Dofasco](/sites/default/files/styles/career_image/public/6735_13.jpg?itok=XugJYaEe)
Amanda Deon (Video)
Career Profiles
Senior Research Technician
Amanda Deon is a senior research technician at Arcelormittal Dofasco.