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Chemical Equations
Backgrounders
Learn about how to write and balance chemical equations.
![Heating a liquid over a flame in a lab](/sites/default/files/styles/resource_card_image_360x300_/public/2021-11/reaction_types_header.jpg?itok=RwhxbpFu)
Types of Chemical Reactions
Backgrounders
Learn about the four main types of chemical reactions.
![Periodic Table with molecular model](/sites/default/files/styles/resource_card_image_360x300_/public/2021-11/benzene_periodic_table.jpg?itok=fCC8x3H6)
Introduction to the Periodic Table of the Elements
Backgrounders
Learn about the elements of the periodic table and how they are organized.
![Colourful liquids and periodic table](/sites/default/files/styles/resource_card_image_360x300_/public/2021-01/colourful_liquids_periodic_table.jpg?itok=BiLEZpiY)
Describing and Classifying Matter
Backgrounders
Learn about the physical and chemical properties of matter.
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Why Do Ice Rinks Stay Frozen?
STEM Explained
Every ice rink is an example of molecular bonding and gas laws at work!
![Screen capture from the TED Ed video “The genius of Mendeleev's periodic table”](/sites/default/files/styles/resource_card_image_360x300_/public/2019-09/Mendeleev_video_screen_shot.jpg?itok=LmlKtLid)
The Genius of Mendeleev's Table
STEM Explained
Dmitri Mendeleev’s version of the periodic table was brilliant - find out why!
![The newest chemical elements](/sites/default/files/styles/resource_card_image_360x300_/public/2019-10/new-chemical-elements-nihonium-moscovium-tennessine-and-oganesson.jpg?itok=DnC4xsXM)
The Newest Elements on the Periodic Table
STEM Explained
The periodic table was last updated in 2016 with four new chemical elements. What is a chemical element? What is the atomic structure of the newest chemical elements? How did they get their names?
![Soapy hands](/sites/default/files/styles/resource_card_image_360x300_/public/2019-10/soapy_hands.jpg?itok=22VihjnH)
Stupendous Suds
STEM Explained
Every time you wash your hands with soap, there are complex chemical reactions taking place.
![Close-up of an amethyst geode](/sites/default/files/styles/resource_card_image_360x300_/public/2019-09/geode_close-up.jpg?itok=e0eo8bjg)
What is a Crystal?
STEM Explained
Learn what makes a crystal a crystal.
![Daisy Rosas Vargas | PhD. Candidate, Indiana University Daisy Rosas Vargas](/sites/default/files/styles/career_image/public/6152_13.jpg?itok=ma0a5r9k)
Daisy Rosas Vargas
Career Profiles
PhD. Candidate