![Zineb Ahnou Ghouila, Manager, National Business Solutions for Uni-Select Canada](/sites/default/files/styles/career_image/public/2019-08/zineb.jpg?itok=i0dr_lMy)
Zineb Ahnou Ghouila
Manager, National Business Solutions
![Cartoon of people cleaning teeth](/sites/default/files/styles/resource_card_image_360x300_/public/2019-09/Cartoon_dentists_cleaning_a_tooth.jpg?itok=vK4Ow00y)
How can chemistry help you take care of your teeth?
STEM Explained
What are your teeth made up of? What chemistry is at work in your mouth? Why do some people get cavities even if they brush regularly?
![https://aWhy are peas and corn classed as starches on food guides?www.pexels.com/photo/agriculture-bright-cereal-close-up-547263/](/sites/default/files/2019-08/pexels-corn.jpeg)
Why are peas and corn classed as starches on food guides?
Hands-on Activities
Learn how test foods for starch.
![Missing alt](/sites/default/files/styles/resource_card_image_360x300_/public/2019-07/6151_0.jpg?itok=1QN7HU1K)
Zoetrope
Interactives
Zoetropes are an early form of animation technology. Learn about this Ingenium artifact and make your own version of this artifact using 3D printing!
![Why can we see shadows at night?](/sites/default/files/2019-08/why-do-we-see-shadows-at-night.jpg)
Why can we see shadows at night?
Hands-on Activities
Take a walk after dark to find shadows.
![Pitcher holding a baseball](/sites/default/files/styles/resource_card_image_360x300_/public/2020-02/pitcher-holding-a-baseball.jpg?itok=Q-P2jehX)
Why Do Curveballs Curve?
STEM Explained
Bernoulli’s equation is key to understanding why curveballs curve.
![People playing ice hockey](/sites/default/files/styles/resource_card_image_360x300_/public/2020-06/people_playing_hockey.png?itok=pPcyU2JG)
Why Do Ice Rinks Stay Frozen?
STEM Explained
Every ice rink is an example of molecular bonding and gas laws at work!
![Why do leaves change colour in the fall?](/sites/default/files/2019-08/wiki-autumnleaf.jpg)
Why do leaves change colour in the fall?
Hands-on Activities
How do the green leaves of summer change to vibrant colours in fall? Explore plant pigments in this chromatography activity.
![Why do oil and water not mix?](/sites/default/files/2019-08/why-do-oil-and-water-not-mix.jpg)
Why do oil and water not mix?
Hands-on Activities
What chemistry determines how oil and water behave when mixed? Explore the mixing of oil and water and the density of liquids in this activity.
![Suffering from a hangover](/sites/default/files/styles/resource_card_image_360x300_/public/2019-11/suffering_from_a_hangover.jpg?itok=6Wjz2McS)
Why Do People Get Hangovers?
STEM Explained
Why does drinking too much alcohol make people feel so bad? Read about four theories.
![Why do raisins dance in soda pop?](/sites/default/files/2019-08/why-do-raisins-dance-in-soda-pop.jpg)
Why do raisins dance in soda pop?
Hands-on Activities
Let them bop ‘til they drop! What causes these raisins to reach new heights in this hands on activity?
![People with cancer and their caregivers](/sites/default/files/styles/resource_card_image_360x300_/public/2019-09/People_with_cancer.jpg?itok=kpFHke8P)
Why Do So Many People Get Cancer?
STEM Explained
We all know someone who has been affected by cancer. What causes cancer? Why is it getting more common?
![Two faces each with one eye visible](/sites/default/files/2022-06/two%20eyes%20to%20see.jpg)
Why do we need two eyes to see?
Hands-on Activities
Ever wondered why we have two eyes (and not one, three or more)? Find how your two eyes work together in this hands-on activity.
![Arctic pack ice](/sites/default/files/styles/resource_card_image_360x300_/public/2021-03/arctic_ice_pack.jpg?itok=-rJJdc-Q)
Why Don't Fish Freeze in Cold Arctic Waters?
STEM Explained
Ever wonder how fish survive in the cold waters of the Arctic and Antarctic? It’s partly because of a brilliant evolutionary adaptation.
![Why is everything so small down there?](/sites/default/files/2019-08/why-is-everything-so-small-down-there.jpg)
Why is everything so small down there?
Hands-on Activities
Explore how we see things far and near and from different angles. It's all about perspective!